Extension IOStorageFamily.kext corrupt after cleaning ...

Hi lads,
looking for an easy fix
This is what I did:
Had a couple of very old apps on my iMac, which didn't run anymore. So I uninstalled iFamily (an application for family trees) and my "friendly" CleanMyMac pops up to help me to uninstall this app.
This is what happens:
When I try to mount any external hard / flash drive, nothings shows, but I get an error msg. that my extension System/Library/Extensions/IOStorageFamily.kext is corrupt and needs reinstalling (or contact the vendor).
Also my system only restarts in safe mode (holding shift at start-up) otherwise I get a no-entry sign.
Now I've seen a similar problem here:
https://discussions.apple.com/message/10269479#10269479
but I'm no good with X11 / terminal / UNIX.
My question:
Can I use UNIX command kextutil to fix my problem or is there another way apart from a system install???
Thx, any help is appreciated.

Copying extensions is not a good idea.
You will still get an error :not installed properly: even after replacing with original extensions.
PS: I solved my problem by restoring my system from a bootable flashdrive (8GB memory stick) with 10.6.2, of which I had a .dmg on my external HD.
PPS: And CleanMyMac is uninstalled now as well. If you have to use this program, be careful to use the uninstall / remove binary feature, both can corrupt your system and apps.

Similar Messages

System extension cannot be used The system extension "/System/Library/Extensions/IOStorageFamily.kext" was installed improperly and cannot be used.

What's up with this? The drive in question is an 80gb IDE external drive, USB connected.
System extension cannot be used
The system extension “/System/Library/Extensions/IOStorageFamily.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.

Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

Firefox v36 - Profile corrupt after clean uninstall / install

Hi All,
Please could I have some help with my Firefox.
I have been using Firefox for years and have not had an issue with my profile before.
When my machine (windows server 2012) goes to standby and I reconnect, the tabs crash out.
I can close the Firefox window but the firefox.exe still remains running and I get an access denied message when trying to close it.
I then need to restart the machine in order to get the process to close.
When I uninstall the application, I also deleted the Mozilla folders in AppData as well as ran CCleaner to clear out the registry.
It then reinstalls fine for a day or two before the issue starts again.
Is there any info on why this could be happening?

''guigs2 [[#answer-705862|said]]''
<blockquote>
You can remove all data stored in Firefox from a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History > Show All History" or "View > Sidebar > History") or via the about:permissions page.
If this is not the case, please consider changing the way Firefox connect to the internet: [[Advanced panel - Accessibility, browsing, network, updates, and other advanced settings in Firefox]]
The default setting is "Use system proxy settings" and you also could try "No proxy."
</blockquote>
Thank you for the suggestions but none seem to help.
Firefox just crashes out all the time now, I open the browser, close the browser and then that's it, I cannot open another window as the task is already running.
Something is corrupt even after I clear all data and registry files.
Will need to use IE/Chrome until I can get a solution

Yoga 2 Pro BIOS UI corrupted after clean install Win 8.1 Pro

Hi all.
First of all sorry for my bad English.
And here is my problem:
I just bought a new laptop "Yoga 2 Pro". Because I have a legal copy of Windows 8.1 Pro I decided to reinstall the system. Before re installing BIOS UI looked normal but after re installation of the operating system BIOS UI looks strange and can not use it. You can see it on the attached photos. I tried to reinstall the system a few times but immediately after installation BIOS UI looked like in the pictures. Interesting that after removing system from SSD, BIOS UI is starting to look normal and is fully functional. I even tried different versions of the operating system because I thought that the cause lies with the ISO file. The effect has always been the same.
Does anyone have any idea what might be causing this problem?
I will be grateful for any suggestions.

I did try removig the Lenovo energy management software, but that didn't work. I also then reinstalled and tried setting it to Performance mode. However, I didn't look for a Windows power mgmt solution.
What's weird is that after I powered down and used the Novo button to check the BIOS version (just to confirm what I said earlier), when I restarted Windows again I did not see the Hyper-V error message. I haven't restarted again, but will check again tomorrow morning when Windows starts again.

IOStorageFamily.kext issue

Hi all,
I recently attempted to change the icon for my hard drive. Instead of doing the copy and paste in the get info window, I had thought it would be a more thorough change if I modified the Internal.icns file within IOStorageFamily.kext (/System/Library/Extensions/IOStorageFamily.kext/Contents/Resources/Internal.ic ns I think). It all went fine replacing that icon until I tried plugging in a USB stick. I got an error message:
After two reboots, I got the same error message two more times when I plugged in a USB device. The USB doesn't show up in Finder or Disk Utility but it does register in system profiler when it is connected.
Luckily I had a backup of the original Internal.icns file so I replaced that, rebooted and now everything works fine. I have since just done the copy and paste in the get info window.
So can anyone tell me what was wrong with what I did to cause the error? Many places on the internet advised that replacing the Internal.icns file was the way to go for changing the icon, although I know they aren't always right? What should I have done differently and what actually screwed things up?
Cheers.

Hi,
(At first I want to say that my English is not that good, so there may be some faults in this anser.)
I had the same problem when i did the same thing as you did.
I changed some icons (so it would change all the drive's icons instead of one "via get info..."), and got the same issue.
After I searched for the solution on how to reinstall the .kext, I came up with this site.
http://ihackintosh.blogspot.be/2008/09/how-to-install-kext-file-on-osx86.html
after following the steps, it fixed my problem, but the only down thing about this is that you need to have a backup (eg. a Time Machine Backup) to get the "IOStorageFamily.kext" file from before you made the change.
I provide you with my .kext file. (I do not know if this will work for other machines yes or no, but I think is is the same for all Macs.) I would first try with your own backed up file.
I have a rMBP 15" with OSX 10.8.3 in case.
-->https://www.dropbox.com/s/5fp9y56u5f245qf/IOStorageFamily.kext.zip<--
I hope this will fix your problem.
Grtz,
Jasper

Itunes 11.0.1 no lee cds marca error en IOStorageFamily.kext

Tengo instalada la nueva version de iTunes (11.0.1) para mac en un iMac 21.5 pulgadas de 2011 con OS X Mountain (10.8.2) y de pronto dejo de leer los cd's me dice que hay un error en la extension IOStorageFamily.kext que puedo hacer al respecto? no tengo ningun disco de instalacion

Tengo instalada la nueva version de iTunes (11.0.1) para mac en un iMac 21.5 pulgadas de 2011 con OS X Mountain (10.8.2) y de pronto dejo de leer los cd's me dice que hay un error en la extension IOStorageFamily.kext que puedo hacer al respecto? no tengo ningun disco de instalacion

Hi - I think on my mac /System/Library/Extensions/AppleUSBEthernetHost.kext is corrupted. Is there an easy fix?

Hi,
I received an EPSON Printer Software Update (vers 2.18) on 30 Aug 2014 and I have not been able to print docs since.
I received the same Update on 20 Sept 2014 but the result is the same.
Whilst these updates were being downloaded an error message described the fault lying in the /System/Library/Extensions/AppleUSBEthernetHost.kext
Is it possible that EPSON has corrupted my Apple drivers?
George.

The error is caused by the iTunes update. Delete the kext file, download and install iTunes from the Apple web site, it will re-install a new kext file.
http://www.apple.com/itunes/download/

ErlyOnyx clean-up of my MacBook OS X10.6.8 says: /System/library/Extensions/AppleUSBEthernetHost.kext "not installed prop

An Onyx clean-up of my MacBook OS X10.6.8 says: /System/library/Extensions/AppleUSBEthernetHost.kext "not installed properly & cannot be used" .
I can move it to trash, but how do I "properly" reinstall it? What are the consequences if I don't instal it. I do not us an ethernet connection on this computer.

Open the Script Editor in the /Applications/AppleScript/ folder, copy and paste the entire following line into it, and press the Run button:
do shell script "chown -R root:wheel /System/Library/Extensions/AppleUSBEthernetHost.kext" with administrator privileges
If it doesn’t work, choose Go to Folder from the Finder's Go menu, provide /System/Library/Extensions/ as the path, throw the AppleUSBEthernetHost.kext item away, and reinstall iTunes.
(127050)

MBP 2012 still slow after clean install of Yosemite

Hello,
I'm hoping someone can help me, I've done just about everything I can find online to get my MBP to work like it used to. After unsuccessful attempts at different workarounds, I decided to wipe everything perform a clean install of Yosemite.
Still no luck!! #nobueno
Problem description:
After clean install of Yosemite, my MacBook Pro (2012) continues to run at a snailspace. Very slow!
EtreCheck version: 2.1.8 (121)
Report generated February 18, 2015 at 11:51:42 AM PST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Pro (13-inch, Mid 2012) (Technical Specifications)
    MacBook Pro - model: MacBookPro9,2
    1 2.9 GHz Intel Core i7 CPU: 2-core
    8 GB RAM Upgradeable
        BANK 0/DIMM0
            4 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1600 MHz ok
    Bluetooth: Good - Handoff/Airdrop2 supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 294
Video Information: ℹ️
    Intel HD Graphics 4000
        Color LCD 1280 x 800
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 1:41:54
Disk Information: ℹ️
    TOSHIBA MK7559GSXF disk0 : (750.16 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
        Macintosh HD (disk1) / : 748.93 GB (735.33 GB free)
            Core Storage: disk0s2 749.30 GB Online
    MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Computer, Inc. IR Receiver
    Apple Inc. BRCM20702 Hub
        Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
User Login Items: ℹ️
    None
Internet Plug-ins: ℹ️
    Default Browser: Version: 600 - SDK 10.10
    QuickTime Plugin: Version: 7.7.3
3rd Party Preference Panes: ℹ️
    None
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
         4%    WindowServer
         1%    Finder
         1%    mds
         1%    mds_stores
         0%    deleted
Top Processes by Memory: ℹ️
    163 MB    mds_stores
    86 MB    com.apple.WebKit.WebContent
    77 MB    Finder
    69 MB    WindowServer
    52 MB    mds
Virtual Memory Information: ℹ️
    4.90 GB    Free RAM
    1.86 GB    Active RAM
    868 MB    Inactive RAM
    954 MB    Wired RAM
    2.28 GB    Page-ins
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Diagnostics Information: ℹ️
    Feb 18, 2015, 10:03:37 AM    Self test - passed
    Feb 18, 2015, 09:55:07 AM    /Library/Logs/DiagnosticReports/mbpluginhost_2015-02-18-095507_[redacted].crash

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
The test works on OS X 10.7 ("Lion") and later. I don't recommend running it on older versions of OS X. It will do no harm, but it won't do much good either.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of it have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message. See, for example, this discussion.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. Try to test under conditions that reproduce the problem, as far as possible. For example, if the computer is sometimes, but not always, slow, run the test during a slowdown.
You may have started up in "safe" mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(1248 ' 0.5 0.25 10 1000 15 5120 1000 25000 1 1 0 100 ' 51 25600 4 10 25 5120 102400 1000 25 1000 150 40 500 300 85 25 20480 262144 20 2000 524288 604800 5 );k=({Soft,Hard}ware Memory Diagnostics Power FireWire Thunderbolt USB Bluetooth SerialATA Extensions Applications Frameworks PrefPane Fonts Displays PCI UniversalAccess InstallHistory ConfigurationProfile AirPort 'com\.apple\.' -\\t N\\/A 'AES|atr|udit|msa|dnse|ax|ensh|fami|FileS|fing|ft[pw]|gedC|kdu|etS|is\.|alk|ODSA|otp|htt|pcas|ps-lp|rexe|rlo|rsh|smb|snm|teln|upd-[aw]|uuc|vix|webf' OSBundle{Require,AllowUserLoa}d 'Mb/s:per sec:ms/s:KiB/s:%:total:MB:total' 'Net in:Net out:I/O wait time:I/O requests:CPU usage:Open files:Memory:Mach ports:File opens:Forks:Failed forks:System errors' 'tsA|[ST]M[HL]' PlistBuddy{,' 2>&1'}' -c Print' 'Info\.plist' CFBundleIdentifier );f=('\n%s'{': ','\n\n'}'%s\n' '\nRAM details\n%s\n' %s{' ','\n'{"${k[22]}",}}'%s\n' '%d MB: %s\n' '\n    ...and %s more line(s)\n' '\nContents of %s\n    '"${k[22]}"'mod date: %s\n    '"${k[22]}"'checksum: %s\n%s\n' );c=(879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 2636415542 3694147963 1233118628 2456546649 2806998573 2778718105 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 3374894509 1051159591 892310726 1707497389 523110921 2883943871 3873345487 );s=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/faceb/s/(at\.)[^.]+/\1NAME/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[4]} ' s/:$//;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: (E[^m]|[^EO])|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[9]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' BEGIN { FS=":";if(system("sw_vers -productVersion|grep -q ^10\.1")) d="^'"${k[21]}"'launch(d\.peruser\.[0-9]+|ctl\.(Aqua|Background|System))$";} { if($2~/[1-9]/) { $2="status: "$2;printf("'"${f[4]}"'",$1,$2);} else if(!d||$1!~d) print $1;} ' ' { sub(/ :/,"");print|"tail -n'${p[10]}'";} ' ' NR==2&&$4<='${p[7]}' { print $4;} ' ' ($1~"wir"&&$2>'${p[22]}')||($1~/P.+ts:/&&$2>'${p[19]}') { print $1" "int($2);} ' '/YLD/s/=/ /p' ' { q=$1;$1="";u=$NF;$NF="";gsub(/ +$/,"");print q":"$0":"u;} ' ' /^ {6}[^ ]/d;s/:$//;/([^ey]|[^n]e):/d;/e: Y/d;s/: Y.+//g;H;${ g;s/ \n (\n)/\1/g;s/\n +(M[^ ]+)[ -~]+/ (\1)/;s/\n$//;/( {8}[^ ].*){2,}/p;} ' 's:^:/:p;' ' !/, .+:/{print};END{if(NR<'{${p[12]},${p[13]}}')printf("^'"${k[21]}"'.+")} ' '|uniq' ' 1;END { print "/L.+/Scr.+/Templ.+\.app$";print "/L.+/Pri.+\.plugin$";if(NR<'{${p[14]},${p[21]}}') print "^/[Sp].+|'${k[21]}'";} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:.+//p;' '&&echo On' '/\.(bundle|component|framework|kext|mdimporter|plugin|qlgenerator|saver|wdgt)$/p' '/\.dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".","");print $0"$";} END { split("'"${c[*]}"'",c);for(i in c) print "\t"c[i]"$";} ' ' /^\/(Ap|Dev|Inc|Prev)/d;/((iTu|ok).+dle|\.(component|mailbundle|mdimporter|plugin|qlgenerator|saver|wdgt))$/p;' ' BEGIN{ FS="= "} $2 { gsub(/[()"]/,"",$2);print $2;} ' ' /^\//!d;s/^.{5}//;s/ [^/]+\//: \//p;' '>&-||echo No' '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[2]}'{$2=$2-1;print}' ' BEGIN { M1='${p[16]}';M2='${p[18]}';M3='${p[8]}';M4='${p[3]}';} !/^A/{next};/%/ { getline;if($5<M1) o["CPU"]="CPU: user "$2"%, system "$4"%";next;} $2~/^disk/&&$4>M2 { o[$2]=$2": "$3" ops/s, "$4" blocks/s";next;} $2~/^(en[0-9]|bridg)/ { if(o[$2]) { e=$3+$4+$5+$6;if(e) o[$2]=o[$2]"; errors "e"/s";next;};if($4>M3||$6>M4) o[$2]=$2": in "int($4/1024)", out "int($6/1024)" (KiB/s)";} END { for(i in o) print o[i];} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/)||(/v6:/&&$2!~/A/) ' ' BEGIN{FS=": "} /^ {10}O/ {exit} /^ {0,12}[^ ]/ {next} $1~"Ne"&&$2!~/^In/{print} $1~"Si" { split($2,a," ");if(a[1]-a[4]<'${p[5]}') print;};$1~"T"&&$2<'${p[20]}'{print};$1~"Se"&&$2!~"2"{print};' ' BEGIN { FS=":";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1;} ' ' BEGIN { split("'"${p[1]}"'",m);FS=":";} $2<=m[$1]{next} $1<9 { o[$1]=o[$1]"\n    "$3" (UID "$4"): "$2;} $1==9&&$5!~"^/dev" { o[$1]=o[$1]"\n    "$3" (UID "$4") => "$5" (status "$6"): "$2;} $1==10&&$5 { p="ps -c -ocomm -p"$5"|sed 1d";p|getline n;close(p);if(n) $5=n;o[$1]=o[$1]"\n    "$5" => "$3" (UID "$4"): "$2;} $1~/1[12]/ { o[$1]=o[$1]"\n    "$3" (UID "$4", error "$5"): "$2;} END { n=split("'"${k[27]}"'",u,":");for(i=n+1;i<n+5;i++)u[i]=u[2];split("'"${k[28]}"'",l,":");for(i in o) print "\n"l[i]" ("u[i]")\n"o[i];} ' ' /^ {8}[^ ]/{print} ' ' BEGIN { L='${p[17]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n    "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n    [N/A]";"cksum "F|getline C;split(C, A);C=A[1];"stat -f%Sm "F|getline D;"file -b "F|getline T;if(T~/^Apple b/) { f="";l=0;while("'"${k[30]}"' "F|getline g) { l++;if(l<=L) f=f"\n    "g;};};if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F"\n    '"${k[22]}"'"T;printf("'"${f[8]}"'",F,D,C,f);if(l>L) printf("'"${f[7]}"'",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' 's/^.{52}(.+) <.+/\1/p' ' /id: N|te: Y/{i++} END{print i} ' ' /kext:/ { split($0,a,":");p=a[1];k[S]='${k[25]}';k[U]='${k[26]}';v[S]="Safe";v[U]="true";for(i in k) { s=system("'"${k[30]}"'\\ :"k[i]" \""p"\"/*/I*|grep -qw "v[i]);if(!s) a[1]=a[1]" "i;};if(!a[2]) a[2]="'"${k[23]}"'";printf("'"${f[4]}"'",a[1],a[2]);next;} !/^ *$/ { p="'"${k[31]}"'\\ :'"${k[33]}"' \""$0"\"/*/'${k[32]}'";p|getline b;close(p);if(b~/, .+:/||b=="") b="'"${k[23]}"'";printf("'"${f[4]}"'",$0,b);} ' '/ en/!s/\.//p' ' NR>=13 { gsub(/[^0-9]/,"",$1);print;} ' ' $10~/$L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?'${k[32]}'$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ / [VY]/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' '/^find: /!p;' ' /^p/{ s/.//g;x;s/\nu/:/;s/(\n)c/\1:/;s/\n\n//;p;};H;' ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */    /;p;' ' s/^.+ |\(.+$$//g;p;' '1;END{if(NR<'${p[15]}')printf("^/(S|usr/(X|li))")}' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' ' $3~/^[1-9][0-9]{0,2}(\.[1-9][0-9]{0,2}){2}$/ { i++;n=n"\n"$1"\t"$3;} END{ if(i>1)print n} ' s/{'\.|jnl: ','P.+:'}'//;s/ +([0-9]+)(.+)/\2 \1/p' ' /es: ./{ s/^.+://;b0'$'\n'' };/^ +C.+ted: +[NY]/H;/:$/b0'$'\n'' d;:0'$'\n'' x;/: +N/d;s/\n.+//p;' ' 1d;/:$/b0'$'\n'' $b0'$'\n'' /(D|^ *Loc.+): /{ s/^.+: //;H;};/(B2|[my]): /H;d;:0'$'\n'' x;/[my]: [AM]|m: I.+p$|^\/Vo/d;s/(^|\n) [ -~]+//g;s/(.+)\n(.+)/\2:\1/;s/\n//g;/[ -~]/p;' 's/$/:(0|-(4[34])?)$/p' '|sort'{'|uniq'{,\ -c},\ -nr} ' s/^/'{5,6,7,8}':/;s/ *: */:/g;p;' '/e:/{print $2}' ' /^[(]/{ s/....//;s/$/:/;N;/: [)]$/d;s/\n.+ ([^ ]+).$/\1/;H;};${ g;p;} ' 's/:.+$//p' '|wc -l' /{\\.{kext,xpc,'(appex|pluginkit)'}'\/(Contents\/)?'Info,'Launch[AD].+'}'\.plist$/p' 's/([-+.?])/\\\1/g;p' 's/, /\'$'\n/g;p' ' BEGIN{FS=":"} { printf("'"${f[6]}"'",$1/1048576,$2);} ' ' /= D/&&$1!~/'{${k[24]},${k[29]}}'/ { getline d;if(d~"t") D=D"\n"$1;} END { print D;} ' ' NR>1&&$3!~/0x|\.([0-9]{3,}|[-0-9A-F]{36})$/ { print $3":"$2;} ' '|tail -n'${p[6]} ' $1>1 { $NF=$NF" x"$1;} /\*/ { if(!f) f="\n\t* Code injection";} { $1="";} 1;END { print f;} ' ' s/.+bus /Bus: /;s/,.+[(]/ /;s/,.+//p;' ' { $NF=$NF" Errors: "$1;$1="";} 1 ' ' 1s/^/\'$'\n''/;/^ +(([MNPRSV]|De|Li).+|Bus): .|d: Y/d;s/:$//;$d;p;' ' BEGIN { RS=",";FS=":";} $1~"name" { gsub("\"","",$2);print $2;} ' '|grep -q e:/' '/[^ .]/p' '{ print $1}' ' /^ +N.+: [1-9]/ { i++;} END { if(i) print "system: "i;} ' ' NF { print "'{admin,user}' "$NF;exit;} ' ' /se.+ =/,/[\}]/!d;/[=\}]/!p ' ' 3,4d;/^ +D|Of|Fu| [0B]/d;s/^ |:$//g;$!H;${ x;/:/p;} ' ' BEGIN { FS=": ";} NR==1 { sub(":","");h="\n"$1"\n";} /:$/ { l=$1;next;} $1~"S"&&$2!~3 { getline;next;} /^ {6}I/ { i++;L[i]=l" "$2;if(i=='${p[24]}') nextfile;} END { if(i) print h;for(j=0;j<i;j++) print L[i-j];} ' ' /./H;${ x;s/\n//;s/\n/, /g;/,/p;} ' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab kextfind top pkgutil "${k[30]}\\" echo cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom 'mdfind -onlyin' env pluginkit scutil 'dtrace -q -x aggsortrev -n' security sed\ -En awk 'dscl . -read' networksetup mdutil lsof test osascript\ -e netstat mdls route cat );c2=(${k[21]}loginwindow\ LoginHook ' /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'" 'L*/Ca*/'${k[21]}'Saf*/E* -d 2 -name '${k[32]} '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' -i '-nl -print' '-F \$Sender -k Level Nle 3 -k Facility Req "'${k[21]}'('{'bird|.*i?clou','lsu|sha'}')"' "-f'%N: %l' Desktop {/,}L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message CRne '0xdc008012|(allow|call)ing|(mplet|nabl)ed|ry HD|safe b|xpm' -k Message CReq 'bad |Can.t l|corru|dead|fail|GPU |hfs: Ru|inval|Limiti|v_c|NVDA[(]|pagin|Purg(ed|in)|error|Refus|TCON|tim(ed? ?|ing )o|trig|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o%cpu,comm,ruid' "' syscall::recvfrom:return {@a[execname,uid]=sum(arg0)} syscall::sendto:return {@b[execname,uid]=sum(arg0)} syscall::open*:entry {@c[execname,uid,copyinstr(arg0),errno]=count()} syscall::execve:return, syscall::posix_spawn:return {@d[execname,uid,ppid]=count()} syscall::fork:return, syscall::vfork:return, syscall::posix_spawn:return /arg0<0/ {@e[execname,uid,arg0]=count()} syscall:::return /errno!=0/ {@f[execname,uid,errno]=count()} io:::wait-start {self->t=timestamp} io:::wait-done /self->t/ { this->T=timestamp - self->t;@g[execname,uid]=sum(this->T);self->t=0;} io:::start {@h[execname,uid]=sum(args[0]->b_bcount)} tick-10sec { normalize(@a,2560000);normalize(@b,2560000);normalize(@c,10);normalize(@d,10);normalize(@e,10);normalize(@f,10);normalize(@g,10000000);normalize(@h,10240);printa(\"1:%@d:%s:%d\n\",@a);printa(\"2:%@d:%s:%d\n\",@b);printa(\"9:%@d:%s:%d:%s:%d\n\",@c);printa(\"10:%@d:%s:%d:%d\n\",@d);printa(\"11:%@d:%s:%d:%d\n\",@e);printa(\"12:%@d:%s:%d:%d\n\",@f);printa(\"3:%@d:%s:%d\n\",@g);printa(\"4:%@d:%s:%d\n\",@h);exit(0);} '" '-f -pfc /var/db/r*/'${k[21]}'*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag $ -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;' '/S*/*/Ca*/*xpc*' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' /\ kMDItemContentTypeTree=${k[21]}{bundle,mach-o-dylib} :Label "/p*/e*/{aut*,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {/p*,/usr/local}/e*/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/{Lau,Sec}*/*t .launchd.conf" list '-F "" -k Sender hidd -k Nle 3' /Library/Preferences/${k[21]}alf\ globalstate --proxy '-n get default' print\ system --dns -get{dnsservers,info} dump-trust-settings\ {-s,-d,} -n1 '-R -ce -l1 -n5 -o'{'prt -stats prt','mem -stats mem'}',command,uid' -kl -l -s\ / '--regexp --files '${k[21]}'pkg.*' '+c0 -i4TCP:0-1023' ${k[21]}dashboard\ layer-gadgets '-d /L*/Mana*/$USER' '-app Safari WebKitDNSPrefetchingEnabled' '-Fcu +c0 -l' -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' '-F \$Message -k Sender kernel -k Message CReq "'{'n Cause: -','(a und|I/O |jnl_io.+)err','USBF:.+bus'}'"' -name\ kMDItem${k[33]} -T\ hfs '-n get default' -listnetworkserviceorder :${k[33]} :CFBundleDisplayName $EUID {,'/{S*/,}'}'L*/{,Co*/*/*/L*/}{Cache,Log}s $TMPDIR../C -type f -size +'${p[11]}'M -exec stat -f'%z:%N' {} \;' \ /v*/d*/*/*l*d{,.*.$UID}/* '-app Safari UserStyleSheetEnabled' 'L*/A*/Fi*/P*/*/a*.json' users/$USER\ HomeDirectory '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' ' -F "\$Time \$(Sender): \$Message" -k Level Nle 3 -k Facility R'{'ne "user|','eq "'}'console" -k Message CRne "[{}<>]|commit - no t|deprec|Goog|realp|sandbox ex|/root" ' getenv '/ "kMDItemDateAdded>=\$time.now(-'${p[23]}')&&kMDItem'${k[33]}'=*"' -m\ / '' );N1=${#c2[@]};for j in {0..20};do c2[N1+j]=SP${k[j]}DataType;done;l=({Restricted\ ,Lock,Pro}files POST Battery {Safari,App,{Bad,Loaded}\ kernel,Firefox}\ extensions System\ load boot\ args FileVault\ {2,1} {Kernel,System,Console}\ log Activity SMC Login\ hook 'I/O per process' 'High file counts' UID Daemons Agents XPC\ cache Startup\ items {Admin,Root}\ access Stylesheet Library\ paths{,' ('{shell,launchd}\)} Font\ issues Firewall Proxies DNS TCP/IP Wi-Fi 'Elapsed time (sec)' {Root,User}\ crontab {Global,User}' login items' Spotlight Memory\ pressure Listeners Widgets Parental\ Controls Prefetching Nets Volumes {Continuity,I/O,iCloud,HID,HCI}\ errors {User,System}\ {caches/logs,overrides} Shutdown\ codes Heat Diagnostic\ reports Bad\ plists Free\ space VM Bundles{,' (new)'} Trust\ settings );N3=${#l[@]};for i in {0..8};do l[N3+i]=${k[5+i]};done;F() { local x="${s[$1]}";[[ "$x" =~ ^([\&\|\<\>]|$) ]]&&{ printf "$x";return;};:|${c1[30]} "$x" 2>&-;printf "%s \'%s\'" "|${c1[30+$?]}" "$x";};A0() { Q=6;v[2]=1;id -G|grep -qw 80;v[1]=$?;((v[1]))||{ Q=7;sudo -v;v[2]=$?;((v[2]))||Q=8;};v[3]=`date +%s`;date '+Start time: %T %D%n';printf '\n[Process started]\n\n'>&4;printf 'Revision: %s\n\n' ${p[0]};};A1() { local c="${c1[$1]} ${c2[$2]}";shift 2;c="$c ` while [[ "$1" ]];do F $1;shift;done`";((P2))&&{ c="sudo $c";P2=;};v=`eval "$c"`;[[ "$v" ]];};A2() { local c="${c1[$1]}";[[ "$c" =~ ^(awk|sed ) ]]&&c="$c '${s[$2]}'"||c="$c ${c2[$2]}";shift 2;local d=` while [[ "$1" ]];do F $1;shift;done`;((P2))&&{ c="sudo $c";P2=;};local a;v=` while read a;do eval "$c '$a' $d";done<<<"$v";`;[[ "$v" ]];};A3(){ v=$((`date +%s`-v[3]));};B1() { v=No;! ((v[1]))&&{ v=;P1=1;};};eval "`type -a B1|sed '1d;s/1/2/'`";B3(){ v[$1]="$v";};B4() { local i=$1;local j=$2;shift 2;local c="cat` while [[ "$1" ]];do F $1;shift;done`";v[j]=`eval "{ $c;}"<<<"${v[i]}"`;};B5(){ v="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d$'\e' <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F$'\e' ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`egrep -v "${v[$1]}"<<<"$v"|sort`;};eval "`type -a B7|sed '1d;s/7/8/;s/-v //'`";C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { B4 0 0 63&&C1 1 $1;};C4() { echo $'\t'"Part $((++P)) of $Q done at $((`date +%s`-v[3])) sec">&4;};C5() { sudo -k;pbcopy<<<"$o";printf '\n\tThe test results are on the Clipboard.\n\n\tPlease close this window.\n';exit 2>&-;};for i in 1 2;do eval D$((i-1))'() { A'$i' $@;C0;};';for j in 2 3;do eval D$((i+2*j-3))'() { local x=$1;shift;A'$i' $@;C'$j' $x;};';done;done;trap C5 2;o=$({ A0;D0 0 N1+1 2;D0 0 $N1 1;B1;C2 27;B1&&! B2&&C2 28;D2 22 15 63;D0 0 N1+2 3;D0 0 N1+15 17;D4 3 0 N1+3 4;D4 4 0 N1+4 5;D4 N3+4 0 N1+9 59;D0 0 N1+16 99; for i in 0 1 2;do D4 N3+i 0 N1+5+i 6;done;D4 N3+3 0 N1+8 71;D4 62 1 10 7;D4 10 1 11 8;B2&&D4 18 19 53 67;D2 11 2 12 9;D2 12 3 13 10;D2 13 32 70 101 25;D2 65 6 76 13;D2 45 20 52 66;D4 66 7 77 14;D4 17 8 15 38;D0 9 16 16 77 45;C4;B2&&D0 35 49 61 75 76 78 45;B2&&{ D0 28 17 45;C4;};D0 12 40 54 16 79 45;D0 12 39 54 16 80 45;D4 31 25 77 15&&{ B4 0 8 103;B4 8 0;A2 18 74;B6 8 0 3;C3 32;};B2&&D4 19 21 0;B2&&D4 40 10 42;D2 2 0 N1+19 46 84;D2 44 34 43 53;D2 25 22 20 32;D2 33 0 N1+14 51;for i in {0..2};do A1 29 35+i 104+i;B3 25+i;done;B6 25 27 5;B6 0 26 5;B4 0 0 110;C2 69;D2 34 21 28 35;D4 35 27 29 36;A1 40 59 81;B3 18;A1 33 60 82;B8 18;B4 0 19 83;A1 27 32 39&&{ B3 20;B4 19 0;A2 33 33 40;B3 21;B6 20 21 3;};C2 36;D4 50 38 5 68;B4 19 0;D5 37 33 34 42;B2&&D4 46 35 45 55;D4 38 0 N1+20 43;B2&&D4 59 4 65 76 91;D4 63 4 19 44 75 95 96;B1&&{ D4 53 5 55 75 69&&D4 51 6 58 31;D4 56 5 56 97 75 98&&D0 0 N1+7 99;D2 55 5 27 84;D4 61 5 54 75 70;D4 14 5 14 12;D4 15 5 72 12;C4;};D4 16 5 73 12;A1 13 44 74 18;C4;B3 4;B4 4 0 85;A2 14 61 89;B4 0 5 19 102;A1 17 41 50;B7 5;C3 8;B4 4 0 88;A2 14 24 89;C4;B4 0 6 19 102;B4 4 0 86;A2 14 61 89;B4 0 7 19 102;B5 6 7;B4 0 11 73 102;A1 18 31 107 94 74||{ B2&&A1 18 26 94 74;}&&{ B7 11;B4 0 0 11;C3 23;};A1 18 26 94;B7 11;B4 0 0 11;C3 24;D4 60 14 66 92;D4 58 14 67 93;D4 26 4 21 24;D4 42 14 1 62;D4 43 37 2 90 48;D4 41 10 42;D2 48 36 47 25;A1 4 3 60&&{ B3 9;A2 14 61;B4 0 10 21;B4 9 0;A2 14 62;B4 0 0 21;B6 0 10 4;C3 5;};D4 9 41 69 100;D2 29 21 68 35;D2 49 21 48 49;B4 4 22 57 102;A1 21 46 56 74;B7 22;B4 0 0 58;C3 47;D4 54 5 7 75 76 69;D4 52 5 8 75 76 69;D4 57 4 64 76 91;D2 0 4 4 84;D2 1 4 51 84;D4 21 22 9 37;D0 0 N1+17 108; A1 23 18 28 89;B4 0 16 22 102;A1 16 25 33;B7 16;B4 0 0 34;D1 31 47;D4 64 4 71 41;C4;B4 4 12 26 89 23 102;for i in {0..3};do A1 0 N1+10+i 72 74;B7 12;B4 0 0 52;C3 N3+5+i;((i))||C4;done;A1 24 22 29;B7 12;B3 14;A2 39 57 30;B3 15;B6 14 15 4;C3 67;A1 24 75 74;B3 23;A2 39 57 30;B3 24;B6 23 24 4;C3 68;B4 4 13 27 89 65;A1 24 23;B7 13;C3 30;B4 4 0 87;A2 14 61 89 20;B4 0 17;A1 26 50 64;B7 17;C3 6;D0 0 N1+18 109;D4 7 11 6;A3;C2 39;C4;} 4>&2 2>/dev/null;);C5
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, a series of lines will appear in the Terminal window like this:
[Process started]
        Part 1 of 8 done at … sec
        Part 8 of 8 done at … sec
        The test results are on the Clipboard.
        Please close this window.
[Process completed]
The intervals between parts won't be exactly equal, but they give a rough indication of progress. The total number of parts may be different from what's shown here.
Wait for the final message "Process completed" to appear. If you don't see it within about ten minutes, the test probably won't complete in a reasonable time. In that case, press the key combination control-C or command-period to stop it and go to the next step. You'll have incomplete results, but still something.
12. When the test is complete, or if you stopped it because it was taking too long, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I may not agree with them.
Copyright © 2014, 2015 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Hard drive is corrupt after i repair it

My hard drive reads corrupt after I repair it. I restart it, hit C, and open it with a startup disk, then repair and restart it. After a while, when I verify my disk, it says that is corrupt, AGAIN!!
Please help
I'm running a mac pro dual core 2 2.66 intel xeon processor, with 16GB of memory My operating system is 10.6,8

So you should have already made a couple backups, always have a spare bootable system drive, and in some cases zero it all - takes couple hours, and not use it except as spare extra backup.
Getting files off your drive now but don't use it,, install OS to a new drive (pull the old one in fact temporary) and you may want to use checksum on all file copies, and for any files not on backup sets try best you can and if you still need help, then turn to Data Rescue 3.
I would not use a DVD to do repairs, even if it is 10.6.0 or 10.6.3. I would use a clean small system drive with 10.6.8 (takes less than 30GB, even down to 16GB if careful) "emergency boot drive" used only for system maintenance and repairs.
And if you had Lion, you don't, but, I would use Recovery Mode AND have that also cloned to another drive, using Carbon Copy Cloner (CCC).

"/System/Library/Extensions/PACESupport.kext"

After finally installing Snow Leopard today and updating to 10.6.4, I've been getting this error message appear sporadically:
System extension cannot be used.
The system extension "/System/Library/Extensions/PACESupport.kext" was installed improperly and cannot be used. Please try re-installing it, or contact the product's vendor for an update.
How can I fix this?
Thanks.

The extension is not an Apple-supplied one. It is an obsolete anti-piracy extension, suppled by Pace Anti-Piracy, Inc. & installed with a few applications such as older versions of Cubase. See Apple > Support > Discussions > Mac OS X v10.4 Tiger > Installation & Setup > PACESupport removal for more info about it & how to get rid of it.

//System/Library/Extensions/AppleUSBEthernetHost.kext

I got a message saying that this: //System/Library/Extensions/AppleUSBEthernetHost.kext was not installed properly and needed to be reinstalled. How do I do that?

Thanks to you both, this fix worked for me too, after long ignoring the error message and vainly waiting for Apple to get around to an update.
Then last night I lost my Internet cable connection, which uses Ethernet between the modem and my iMac (Max OS X 10.6.8). At first, I blamed my ISP because the modem played up for a while, but after I rebooted it a few times, it returned to normal, but I still couldn't get online. I suspected, rightly or wrongly, that this faulty kernel extension might be the culprit. It took me 90 minutes' fiddling to obtain a slow Internet link, but that enabled me to download iTunes 11.4 from Apple.
I cautiously created a "Pre-trash" folder in which I dumped the non-functioning AppleUSBEthernetHost.kext and a back-up of iTunes library files before using the iTunes installer, with an eye on the open //System/Library/Extensions finder window. When the new kernel extension popped up in it towards the end of the installation, I noticed that it bore the date July 29, 2014! Its predecessor dated from mid-2009. This is not the first time in many years that an iTunes upgrade via Software Update has caused problems, usually corrected by downloading directly from the Apple site.
I fixed permissions for good measure and have found that my Internet connection is also nice and fast again, but I have no idea whether that's pure coincidence.

/System/Library/Extensions/System.kext/PlugIns/BSDKernel.kext

I get an error box reading: The system extension “/System/Library/Extensions/System.kext/PlugIns/BSDKernel.kext” was installed improperly and cannot be used. please try reinstalling it, or contact the product's vendor for an update. Is there any way to reinstall this without re-installing the entire system?

You can give this a try:
Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Reinstalling OS X Without Erasing the Drive
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Alternatively, see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

Sluggish and Slowness MacBookPro after clean install Mavericks

Hi,
My MacBook Pro 2012 become slow and sluggish after clean install Mavericks. I have to longgg waiting for applications to run ( even my old laptop can run Windows faster!! ). Compare I bought this MBP with Mountain Lion , this one is much slower with Mavericks. There are audible harddrive activity.
I already done with NVAM & SMC reset but still nothing change on performance.
Hope anybody here can help me since a quite a fews days i keep thinking to resolve this matter.
Hardware Information:
          MacBook Pro (13-inch, Mid 2012)
          MacBook Pro - model: MacBookPro9,2
          1 2.5 GHz Intel Core i5 CPU: 2 cores
          4 GB RAM
Video Information:
          Intel HD Graphics 4000 - VRAM: 1024 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 0 days 2:58:42
Disk Information:
          APPLE HDD ST500LM012 disk0 : (500.11 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 499.25 GB (480.26 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-8A8
USB Information:
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple Computer, Inc. IR Receiver
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
Launch Agents:
User Launch Agents:
User Login Items:
          None
Internet Plug-ins:
          Default Browser: Version: 537 - SDK 10.9
          QuickTime Plugin: Version: 7.7.3
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
3rd Party Preference Panes:
          None
Bad Fonts:
          None
Old Applications:
          None
Time Machine:
          Auto backup: YES
          Volumes being backed up:
                    Macintosh HD: Disk size: 464.96 GB Disk used: 17.68 GB
          Destinations:
                    WD My Passport [Local] (Last used)
                    Total size: 465.41 GB
                    Total number of backups: 2
                    Oldest backup: 2014-01-31 14:48:18 +0000
                    Last backup: 2014-02-01 07:31:57 +0000
                    Size of backup disk: Adequate
                              Backup size 465.41 GB > (Disk used 17.68 GB X 3)
          Time Machine details may not be accurate.
          All volumes being backed up may not be listed.
Top Processes by CPU:
               3%          WindowServer
               1%          EtreCheck
               0%          imagent
Top Processes by Memory:
          127 MB          com.apple.IconServicesAgent
          70 MB          mds_stores
          37 MB          mds
          37 MB          WindowServer
          29 MB          Activity Monitor
Virtual Memory Information:
          2.23 GB          Free RAM
          941 MB          Active RAM
          222 MB          Inactive RAM
          644 MB          Wired RAM
          257 MB          Page-ins
          0 B          Page-outs

@mamatcyber @ Linc Davis
Same issue here I have done clean installs using Super Duper (Back-up All Fresh clean slate...)
and still Mavericks is getting slower and slower.....
Using Gimp it now takes 5 mins to export a .jpeg file 500k !
OSX 10.9.1
Processor 2.26ghz
Ram 2gb
250gb HD 196gbfree
Even just now I did a clean install and i'm seeing the spinning beach ball with Firefox, and it's slow to opening up volumes.
This is Ridiculous Apple!

Suspicious files detected after clean windows 10 installation

Hi
I scanned my computer after clean windows 10 installation and found three suspicious files and i'm confuse should i remove it or not. The files details are below.
Emsisoft Emergency Kit - Version 9.0
Last update: 25/03/2015 07:40:59
User account: Addison
Scan settings:
Scan type: Custom Scan
Objects: Rootkits, Memory, Traces, C:\
Detect PUPs: On
Scan archives: On
ADS Scan: On
File extension filter: Off
Advanced caching: On
Direct disk access: Off
Scan start:   25/03/2015 07:43:00
C:\Program Files\WindowsApps\Microsoft.Cortana_1.4.2.152_x86__8wekyb3d8bbwe\dndactionurihandlers.dll    detected: Gen:Variant.Renos.38 (B)
C:\Windows\System32\omadmclient.exe    detected: Gen:Variant.Graftor.6200 (B)
C:\Windows\WinSxS\x86_microsoft-windows-d..agement-omadmclient_31bf3856ad364e35_10.0.10041.0_none_7aacbb6a819e253e\omadmclient.exe    detected: Gen:Variant.Graftor.6200 (B)
Scanned   138054
Found   3
Scan end:   25/03/2015 08:03:27
Scan time:   0:20:27

Addison
You can confirm whether or not these are malware by running a second malware app (Malwarebytes) I suspect they are not and are just false positives
Please download the free version of Malwarebytes.
Update it immediately.
Do a full system scan
Let us know the results at the end.
http://www.malwarebytes.org/products
Wanikiya and Dyami--Team Zigzag

Extension IOStorageFamily.kext corrupt after cleaning ...

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