How do I troubleshoot AppleUSBEthernetHost.jext was installed improperly?
I get the following message: " System extension cannot be used //system/library/extensions/AppleUSBEtherenetHost.kext was improperly installaed and cannot be used. Please try reinstalling or contact product's vendor for an update." This is a 3+ year old Mac and I didn't update this file. I can actually see this Kernel extension there, dated Mar 10, 2010 12:50 am
Try repairing permissions:
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU 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 DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Similar Messages
-
In the course of an upgrade i received this message. How do I delete it?
The system extension "/system/library/Extensions/appleusbethernethost.kext was installed improperly and cannot be used. please try reinstalling it or contact the product vendor for an update.There's a simplier fix now.
Follow , 6plus55
Upgraded to iTunes 11.4 and now it won't sync my iPhone 5s-sync button is greyed out.
hey guys just got off the phone and solved my problem. i have a 6+ and my mac is a core duo macbook from 2006 on snow leopard.
this is what i did:
download and install a clean copy of 11.4 (even if its already installed, run the installer again)
click the following link to empty your syncing cache. following the instructions for your operating system
restart itunes and voila!
OS X: Resetting Sync Services -
I keep receiving this message, "The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update." How do I do it, please?
I couldn't find the extension to get rid of it.
In the Finder, follow the path given above: "System/Library/Extensions/AppleUSBEthernetHost.kext" -
What does this mean? What should I do?
The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.You don't even have to type more than 8 letters:
-
Received following message during installation of an iTunes update today (9/16/14): System extension cannot be used. The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update. What is to be done about it?
Thanks for the reply. I'm not experienced in the inner workings of the iMac system and its programs, so please follow my train of thought as I try to find and understand your reply.
You wrote that I should check out "Please see - AppleUSBEthernetHost.kext error on installing iTunes update" and I did so.
There I found your reply of 9/1014 7:06 PM to j'ski stating: "There is a larger thread here which you may want to follow - system extension cannot be used AppleUSBEthernetHost.kext ."
And an earlier Post by Greg Earle of 9/10/14 5:57 PM stating: " You would have been better off doing open /System/Library/Extensions and then finding the AppleUSBEthernetHost.kext kernel extension icon in the Finder window that came up and moving it to the Trash."
And a subsequent Post on 9/15/14 at 2:59 PM by Rob Maurer stating: "This method worked perfectly for me. I am on a Mac Pro running Mountain Lion. Dragged the kext file to trash (I use EasyFind. Found the file, Revealed in Finder, dragged to Trash, entered admin password when requested). Downloaded iTunes 11.4 from the website. Installed from that download. Checked for that kext file in EasyFind again and found it had a creation date of 7/29/14 (the trashed one had a creation date from 2009). No more error messages. ITunes opens fine. Everything good. Will not update on my MacBook Pro until they fix this issue.
All of which leave me wondering - what is your answer/recommendation? Do I drag the kext file to trash, download iTunes 11.4 from the website and install it from that download, check for that kext file again to see if it has a later date than the initial one? And, if so, seed if iTunes opens okay or not? And if so, do not update iTunes again until Apple fixes whatever is wrong? -
I need to install update on Quicktime. I have version 7.6.6. Updates are supposed to be installed automatically. Macbook Pro 10.6.8 can't update to current version? I am told:
System extension cannot be used
The system extension "/System/Library/Extensions/AppleUSBEthernetHost.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an updateYou can use Pacifist to just install that kext if you want from that update file...
Pacifist...
http://www.charlessoft.com/ -
I just got a message on macbook pro: The system extension "//System/Library/Extensions/AppleUSBethernetHost.kext" was installed improperly. Please try uninstalling it, or contact the product 's vendor for an update.
Anyone have any idea what this is about?Sasha-
Maybe your looking in the wrong "Library". On my Mavericks; I open the HD to see a folder below the Library Folder called "Systems". Open the Systems Folder to see a "Library Folder". Open that library folder to see "Extensions folder". Open the extensions folder to find the "AppleUSBethernetHost.kext" and delete that extention. Following Lanny's post, do this:
1st- Close iTunes.
2nd- Delete the system extension “AppleUSBethernetHost.kext” from here:
//System/Library/Extensions/AppleUSBethernetHost.kext
3rd- go to iTunes 11.4 download, here: https://www.apple.com/itunes/download/
click on the "Download Now" link.
4th- Find the downloaded iTunes11.4.dmg file, open it, now open the Install iTunes.pkg
After the re-install as above I got the successfully installed window and no “pop up”
improperly installed AppleUSBMultitouch.kext warning window.
My System: 27" iMac 2.8 GHz Quad Core i7; 8 GB DDR3 SDRAM 2x4; 2 TB Serial ATA Drive; ATI Radeon HD 4850 Graphics with 512 MB; Using 10.9.4 Mavericks. AudioEngine A5's
Later, Robes -
While running the Software Updater, I encountered an error: "System Extension cannot be used" ... System/Library/Extensions/AppleUSBEthernetHost.kext was installed improperly and cannot be used. Can somebody help me resolve this error message. Would this error affect my ability to run FaceTime ?
Seems pretty clear to me. Here's what you can try:
Open Terminal in your Utilities folder. Paste the following at the prompt:
sudo chown -R root:wheel /System/Library/Extensions/AppleUSBEthernetHost.kext
Press RETURN. Enter admin password when prompted. It will not be echoed so type carefully. Press RETURN again.
Restart the computer. -
Was updating at the App Store - Safari, iTunes, iWorks 09 and prior to that had updated something at Adobe's website. Then this error message popped up:
“//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.
(I just received a refurbished computer with a new hard drive from a local Apple repair store...
Is this an easy fix. Thanks, CharlotteWhat I ended up doing is a reinstall the OS.
There was an important component I forgot to mention...my hard drive had crashed and I had it replaced. When it was replaced - the old drive was copied to the new. Since the prior error messages I had gotten from MemTest and CheckMate kept saying Bad Blocks in the drive - it was suggested that the corrupt or missing data on these "bad blocks" had not copied or copied incorrectly.
So only time will tell if this fixed this error. (Don't have external hard drive so never had Time Machine set up to begin with.) Original computer was refurbished and believe some things weren't done right from the get go. Oh well... Hope I didn't lead anyone astray. -
Hi,
I started receiving the following error message (picture) about a week ago, and it has popped out every day. I have not noticed what triggers it yet.
Does anyone know what could it be and how to fix it?
Thank you!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.
(123201) -
I clicked on ok. The box behind said updates were installed and I didn't have any problems. Is this something that needs attention? Thank you.
If it does cause problems or reappears, go to hard drive level/System/Library/Extensions/AppleUSBEthernetHost.kext and move the file to the trash. Reinstall iTunes 11.4, which should fix the problem.
iTunes 11.4 -
What does this message mean ? It has popped up a couple of times and I want to fix whatever it is. Thanks for your help.
Seems pretty clear to me. Here's what you can try:
Open Terminal in your Utilities folder. Paste the following at the prompt:
sudo chown -R root:wheel /System/Library/Extensions/AppleUSBEthernetHost.kext
Press RETURN. Enter admin password when prompted. It will not be echoed so type carefully. Press RETURN again.
Restart the computer. -
After a Security 2014-004 update, permissions, restart, I attempted to do the latest iTunes (11.4) update and received the following announcement:
! System Extension cannot be used The system extension "//System/Library/Extensions/appleUSBEthernetHost.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the products vendor for an update.
What's this?Niel,
I have the same problem after reinstalling OS 10.6.8. I tried adding (do shell script "chown -R root:wheel /System/Library/Extensions/AppleUSBEthernetHost.kext" with administrator privileges) to Apple Script and followed all your suggestions. I have now installed OX 10.9.5 but get the same message. I did not use iTunes, but your message included "If it doesn’t work, throw that item away and then reinstall iTunes." Where do I get iTunes to reinstall? Sorry because I, too, am not a computer genius. -
Mountain Lion Recovery DVD - How can I make one, ML was installed on my iMac and BBP
Mountain Lion Recovery DVD - How can I make one, ML was installed on my iMac and MBP when I purchased them. When I look at the App Store, it dose not show ML as purchased (to download again) - do I have to purchase it again to make a Recovery DVD?
Thanks for your help.
Regards
NGIdo i have to purchase it again to make a Recovery DVD?
No. You can still make a bootable recovery DVD, but you will not be able to make a full bootable copy of ML without purchase.
1) Enable the debug menu for Disk Utility via Terminal Application. Navigate to terminal by typing "terminal" in spotlight. Copy the bolded text below and enter it into the command prompt:
defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool true ; open -a "Disk Utility" ; exit
2) From the Debug Menu > Select Show every Partition > Recovery HD should appear
3) Right click (control + click) the Recovery HD partition and select "Mount"
4) Right click again the partition again > "Reveal Recovery HD in Finder". Leave this window open
5) At this point, you will need open terminal again and enter the following command:
sudo chflags nohidden /Volumes/Recovery\ HD/com.apple.recovery.boot/BaseSystem.dmg ; exit
Type your password when prompted.
6) Navigate back to the Recovery HD finder Window > com.apple.recovery.boot > BaseSystem.dmg
7) Drag "BaseSystem.dmg" into Disk Utility's sidebar.
8) Insert your DVD
9) Select "BaseSystem.dmg" in the sidebar and hit "Burn"
Once the burn is completed, hold option down at startup and select the DVD to boot. This is a bootable Recovery partition, not a bootable copy of ML.
Note: to disable the debug menu,
defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool false -
Please help!
After installing iTunes 11.0.1 I got a splash screen that appears after all updates. The screen reads:
System extension cannot be used
"The system extension “/System/Library/Extensions/PulseDriver.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update."
Question: How do I re-install or replace this file?
JimI submitted the above question, later finding that it has been answered by Buller already. No one need reply as Buller's answer seems to solve the problem for others, and I'll try that.
Jim
Maybe you are looking for
-
Question regarding filevault and a honeypot account
I am running osx lion. I would like to secure my machine, and that includes basics like good passwords and turning on a firmware password. But I would also like to encrypt the contents of the hard drive. Filevault to the rescue it would seem. But
-
How to connect my mac throgh a proxy server
Hello. At my university there is free wifi through a proxy (as i could understand but i'm not practical of those thinghs). My computer automatically connect with the wifi but then the browser doesn't automatically ( nor manually) connect to the login
-
Hello experts, I have a function module that runs so slow, I just want to seek some advice to help me have a better performance speed what can I used and alternatives to make my codes faster... any advice can help Heres my <b> code </b> <b>Declaratio
-
PDF document in Java application
Hi All, Is it possible to show a PDF document in Java application, Using JEditorPane or.....? Regards, Byju
-
Applications not visible in Software Center
Hello Guys, some Clients have Problems to show Application Deployments in Software Center. In Deployment Monitoring Tool I can see the Deployments. But if you select the Deployment I get the Error "DT cannot be empty". So I think the Policy isn't dow