Fans CONSTANTLY running after installing Mavericks

So yeah - Fan constantly running after installing Mavericks.
NOT HARDWARE... tell me it is and ill lose my mind... I used to be an Apple Tech.
Erased and REINSTALLED Mountain Lion = RESOLVED
Reinstalled Mavericks = PERSISTS
REINSTALLED Mountain Lion = RESOLVED
--AWAITING OS FIX---
MACBOOK PRO 2009, 750GB HD, 8GB RAM

Similar Messages

Macbook Air constantly rebooting after installing Mavericks... this was my fix

Just in case this helps anyone.
I installed Mavericks on my Mac without an issue. When it restarted, my Mac would constantly reboot after a few minutes. It didn't matter if I logged in or not. I tried the various things that have been suggested (reset NVRAM, CMOS, running a disk check) but nothing help. If I booted into safe mode, I would not have any problems.
The issue ended up being some systems extensions in my /System/Library/Extensions folder. I had installed and deleted Trend Micro Smart Surfing a while ago by using the manual uninstall (move the application to the trash) which leaves the system extensions it had added intact (there was a Trend Micro folder in /System/Library/Extensions).
I reinstalled the software and then used the uninstaller that came with the program and after I rebooted, everything worked fine. I checked the /System/Library/Extensions folder and could see that the Trend Micro folder had been removed by the uninstaller.
I would suggest looking at the /System/Library/Extensions folder and comparing to what is in the applications folder. If you something in the extensions folder but not in the application one, you might be having the same type of issue that I was having.
Alex

Startup your Mac while holding down the Command + R keys so you can access the built in utilities to repair the startup disk and restore OS X using OS X Recovery.

Fan Constantly running after Bios Update

Hello,
I have a Dv6 1245 and after updating my bios to F. 41 A. The fan is constantly running, its not loud or anything, but its constantly on and humming. What should I do?
Thank You

ricwimmer1,
Sometimes things are not interlated. When was the last time you completely cleans the chassis of dust.
Use this guidline to start: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02433041&cc=us&dlc=en&lc=en&product=1841799&tmp...
Upgrade/Service manual: http://h10032.www1.hp.com/ctg/Manual/c00311110.pdf
Be sure to remove the front cover (see Pg3), and clean the dust off the chassis.
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
The Law of Effect states that positive reinforcement increases the probability of a behavior being repeated. (B.F.Skinner). You toss me KUDO and/or Solution, and I perform better.
(2) HP DV7t i7 3160QM 2.3Ghz 8GB
HP m9200t E8400,Win7 Pro 32 bit. 4GB RAM, ASUS 550Ti 2GB, Rosewill 630W. 1T HD SATA 3Gb/s
Custom Asus P8P67, I7-2600k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX660 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Custom Asus P8Z77, I7-3770k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX670 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Both Customs use Rosewill Blackhawk case.
Printer -- HP OfficeJet Pro 8600 Plus

MacBook fan constantly running after recent updates

Ever since I installed the QuickTime/FrontRow/iTunes update of the other day, my MacBook's fan has been running constantly. I have rebooted, reset the SMC, checked Activity Monitor for any rogue processes, reinstalled the updates via the downloads from Apple, etc., and found nothing out of the ordinary. I installed iStat Pro's Dashboard widget to monitor the speed, and it shows it as running from 5300 - 5800 RPM regularly even with nothing intense going on. This doesn't seem normal, as before the fan would only come on when I was doing something CPU-intensive. Any ideas?

I finally found my issue, it was NOT the recent update (at least on my machine) but my printer queue.
When I print from my MacBook I do so wirelessly through a printer I connect to a different Mac just for this purpose. BUT, this time I disconnected the Printer from the other machine apparently before two of my jobs had been able to print. Thus, for the last three days each time I turned my Mac on it would endlessly look for the printer and attempt to print. This could be seen under Process ID 0, called "_PrintJobMgr".
THE FIX:
All I needed to do was go to System Preferences -> Print & Fax-> then delete any open jobs.
So, this was my fault, but it would be nice if the software was smart enough to kill these jobs on its own.

Macbook pro running slowly after installing Maverick. Solutions?

macbook pro running slowly after installing Maverick. Solutions?

Hello art02,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
If your Mac runs slowly
http://support.apple.com/kb/PH10798
If you find your Mac is running slowly, there are a number of potential causes that you can check.
If none of these suggestions work, you may need to repair your computer’s disk in Disk Utility.Repair a disk
Best of luck,
Mario

HT6114 My Macbook is running very slowly after installating mavericks. Could anyone help?

My Macbook is running very slowly after installating mavericks. Could anyone help?

OS X Mavericks: If your Mac runs slowly?
Spotlight indexing make computer run slowly after a fresh installation of OS X.
http://support.apple.com/kb/PH13895
Startup in Safe Mode
http://support.apple.com/kb/PH14204
Repair Disk
Steps 1 through 7
http://support.apple.com/kb/PH5836
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Increase disk space.
http://support.apple.com/kb/PH13806
Run EtreCheck and remove MacKeeper, CleanMyMac Norton Security, other third party aps,etc
if you have installed those applications.
https://discussions.apple.com/docs/DOC-6173

I'm running AutoCAD LT 2012 on my powerbook. Has anyone had experience using AutoCAD after installing Mavericks?

I'm running AutoCAD LT 2012 on my Macbook Pro. Has anyone had experience using AutoCAD after installing Mavericks?

Autodesk just released an update for AutoCAD 2013: http://forums.autodesk.com/t5/AutoCAD-for-Mac/Autocad-2013-compatibility-with-Ma vericks/m-p/4561479
I do not know if a similar one will be required for AutoCAD LT so be sure to check their website.

Cooling fans constantly run @ full speed after replacing the upper CPU??

After replacing the upper CPU on a Power Mac G5 (June 2004), Dual 1.8Ghz PowerPC, model M9454LL/A, all the cooling fans constantly run at full speed. All other operations are normal.
I've read, "...after replacing or switching CPU locations the Logic Board doesn't properly recognize the CPU's in their new location and a "Thermal Calibration" is needed". Could a "Thermal Calibration" possibly correct the constant full fan speed issue?
What software would be required?

Hi-
Could a "Thermal Calibration" possibly correct the constant full fan speed issue?
Yes.
What software would be required?
The Apple Service Diagnostic disc (ASD) of the proper version for your machine.
Call an authorized Apple service provider and arrange a calibration, as the disc is not readily available to individuals.

After installing Maverick my computer, when restarted, only a gray screen appeared. My computer won't work at all...what happened?

After installing Maverick my computer shut down and when it restarted I couldn't get to the home screen. The monitor was grey with some dark grey shapes, it sounded like it was constantly running a program. My computer is sick!! HELP

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use either of the techniques in Steps 1b and 1c to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 10. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 10
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 11
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 12
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

How do I restore gid after installing Mavericks?

Hi folks,
quick question for you all.
Before installing Mavericks (I was running Mountain Lion), I was in the following situation:
I was user myname with uid=501, and
(besides other) I was member of a group called myname, which had gid=501.
Now, after installing Mavericks,
I'm still user myname with uid=501,
group myname still exists,
but now has gid=20, and
I am no more member of it.
As a result, a few files / folders which were accessible before installation, are denied to me now (listing them in Terminal correctly displays them as assigned to gid=501, which unfortunately seems to be unknown to the system).
How do I fix this (apart from changing file permissions)? I presume I should just
take group myname and change its gid back from 20 to 501,
add back my membership to it.
But how do I go through first step? And, more importantly, am I at risk of doing something wrong?
(And why on earth would Mavericks do that?)
Thanks in advance
S

OK thanks I'll do that. I had actually upgraded to Lion, but when my data was read back to the new hard disk, obviously the upgrade wasn't. Thanks for your advice.

After installing Mavericks, my computer is slow/not responding

After installing Mavericks, my computer is not responding and reacting as quickly as (I think) it should. Here are the EtreCheck results. Any help would be much appreciated. Thanks in advance!
Hardware Information:
          iMac (27-inch, Mid 2010)
          iMac - model: iMac11,3
          1 2.93 GHz Intel Core i7 CPU: 4 cores
          16 GB RAM
Video Information:
          ATI Radeon HD 5750 - VRAM: 1024 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 0 days 9:55:48
Disk Information:
          Hitachi HDS722020ALA330 disk0 : (2 TB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 2 TB (1.25 TB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          HL-DT-STDVDRW GA32N
USB Information:
          Apple, Inc. Keyboard Hub
                    Apple, Inc Apple Keyboard
          Apple Inc. Built-in iSight
          Apple Computer, Inc. IR Receiver
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Internal Memory Card Reader
FireWire Information:
          WD My Book 111D 800mbit - 800mbit max
                    disk1s1 (disk1s1) <not mounted>: 32 KB
                    My Book (disk1s3) /Volumes/My Book: 1 TB (30.96 GB free)
Thunderbolt Information:
Kernel Extensions:
          com.kaspersky.kext.klif          (3.0.2d39)
          com.kaspersky.nke          (1.0.2d43)
          com.kaspersky.kext.kimul.44          (44)
Startup Items:
          FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist 3rd-Party support link
          [loaded] com.adobe.SwitchBoard.plist 3rd-Party support link
          [loaded] com.kaspersky.kav.plist 3rd-Party support link
          [loaded] com.microsoft.office.licensing.helper.plist 3rd-Party support link
          [invalid] com.oracle.java.Helper-Tool.plist
Launch Agents:
          [not loaded] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
          [loaded] com.adobe.CS5ServiceManager.plist 3rd-Party support link
          [loaded] com.divx.dms.agent.plist 3rd-Party support link
          [loaded] com.divx.update.agent.plist 3rd-Party support link
          [loaded] com.kaspersky.kav.gui.plist 3rd-Party support link
          [invalid] com.oracle.java.Java-Updater.plist
User Launch Agents:
          [loaded] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
          [loaded] com.adobe.ARM.[...].plist 3rd-Party support link
          [loaded] com.adobe.ARM.[...].plist 3rd-Party support link
          [loaded] com.facebook.videochat.[redacted].plist 3rd-Party support link
          [loaded] com.google.keystone.agent.plist 3rd-Party support link
User Login Items:
          Scroll Reverser
          Scroll Reverser
          iTunesHelper
          EEventManager
          Dropbox
          AdobeResourceSynchronizer
          EEventManager
          ConnectService
Internet Plug-ins:
          Google Earth Web Plug-in: Version: 6.0 3rd-Party support link
          Default Browser: Version: 537 - SDK 10.9
          OVSHelper: Version: 1.1 3rd-Party support link
          NP_2020Player_WEB: Version: 5.0.94.0 - SDK 10.6 3rd-Party support link
          RealPlayer Plugin: Version: (null) 3rd-Party support link
          AdobePDFViewerNPAPI: Version: 11.0.02 - SDK 10.6 3rd-Party support link
          FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
          Flash Player: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
          QuickTime Plugin: Version: 7.7.3
          iPhotoPhotocast: Version: 7.0 - SDK 10.8
          NP_2020Player_IKEA: Version: 5.0.94.1 - SDK 10.6 3rd-Party support link
          AdobePDFViewer: Version: 9.5.5 3rd-Party support link
          SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 3rd-Party support link
          JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Outdated! Update
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
User Internet Plug-ins:
          Unity Web Player: Version: UnityPlayer version 2.6.1f3 3rd-Party support link
3rd Party Preference Panes:
          Fan Control 3rd-Party support link
          Flash Player 3rd-Party support link
          Perian 3rd-Party support link
Bad Fonts:
          None
Old Applications:
          /Library/Application Support/Microsoft/MERP2.0
                    Microsoft Error Reporting:          Version: 2.2.9 - SDK 10.4 3rd-Party support link
                    Microsoft Ship Asserts:          Version: 1.1.4 - SDK 10.4 3rd-Party support link
          Solver:          Version: 1.0 - SDK 10.5 3rd-Party support link
                    /Applications/Microsoft Office 2011/Office/Add-Ins/Solver.app
          /Library/Application Support/DivX
                    DivXUpdate:          Version: 1.0 - SDK 10.5 3rd-Party support link
                    DivXMediaServer:          Version: 10.0 - SDK 10.5 3rd-Party support link
                    DivXTransferWizard:          Version: 10.0.0 (Build 10.0.1.41) - SDK 10.5 3rd-Party support link
                    DMSLaunch:          Version: 1.0 - SDK 10.5 3rd-Party support link
          SketchUp:          Version: 8.0 - SDK 10.5 3rd-Party support link
                    /Applications/Google SketchUp 8/SketchUp.app
          /Applications/Microsoft Office 2011/Office
                    Microsoft Graph:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Database Utility:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Office Reminders:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Upload Center:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    My Day:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    SyncServicesAgent:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Open XML for Excel:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Alerts Daemon:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Database Daemon:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Chart Converter:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Clip Gallery:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
          /Applications/Microsoft Office 2011
                    Microsoft PowerPoint:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Excel:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Outlook:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Word:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Document Connection:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
          Microsoft Language Register:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    /Applications/Microsoft Office 2011/Additional Tools/Microsoft Language Register/Microsoft Language Register.app
          Wondershare Helper Compact:          Version: 2.2.3.1 - SDK 10.5 3rd-Party support link
                    /Users/christophermcgreger/Library/Application Support/Helper/Wondershare Helper Compact.app
          Microsoft AutoUpdate:          Version: 2.3.6 - SDK 10.4 3rd-Party support link
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
          FacebookVideoCalling:          Version: 1.2.0.157 - SDK 10.5 3rd-Party support link
                    /Users/christophermcgreger/Library/Application Support/Facebook/video/1.2.0.158/FacebookVideoCalling.app
          Wondershare AllMyTube:          Version: 3.2.4 - SDK 10.5 3rd-Party support link
                    /Applications/Wondershare AllMyTube/Wondershare AllMyTube.app
Time Machine:
          Skip System Files: NO
          Mobile backups: OFF
          Auto backup: YES
          Volumes being backed up:
                    Macintosh HD: Disk size: 2 Disk used: 696.37 GB
          Destinations:
                    My Book [Local]
                    Total size: 931.36 GB
                    Total number of backups: 51
                    Oldest backup: 2013-07-17 12:40:03 +0000
                    Last backup: 2014-01-05 23:55:06 +0000
                    Size of backup disk: Too small
                              Backup size 931.36 GB < (Disk used 696.37 GB X 3)
                    Data [Network] (Last used)
                    Total size: 3
                    Total number of backups: 53
                    Oldest backup: 2013-07-16 22:38:22 +0000
                    Last backup: 2014-01-05 22:50:13 +0000
                    Size of backup disk: Adequate
                              Backup size 3 > (Disk used 696.37 GB X 3)
          Time Machine details may not be accurate.
          All volumes being backed up may not be listed.
Top Processes by CPU:
              11%          mds
               3%          WindowServer
               2%          diskimages-helper
               1%          EtreCheck
               1%          kav
Top Processes by Memory:
          524 MB          mds_stores
          360 MB          kav
          246 MB          com.apple.IconServicesAgent
          213 MB          com.apple.MediaLibraryService
          164 MB          Finder
Virtual Memory Information:
          10.45 GB          Free RAM
          3.44 GB          Active RAM
          851 MB          Inactive RAM
          1.27 GB          Wired RAM
          918 MB          Page-ins
          0 B          Page-outs

CrassBrauer wrote:
... With the latest software updates for OS X, I've read that anti-virus software is largely superfluous for Mac. Any opinions to the contrary/negative experiences?
Almost. Anti-virus software is completely superfluous for Mac.
I have tested most of the commonly available Mac "anti-virus" products under controlled conditions. The only differences between them are their varying degree of worthlessness. Some are malicious and will corrupt your Mac. The vast majority of Mac problems reported on this site are the direct result of using such products.
OS X already includes everything it needs to protect itself from viruses and malware. Keep it that way with software updates from Apple.
A much better question is "how should I protect my Mac":
Never install any product that claims to "speed up", "clean up", "optimize", or "accelerate" your Mac. Without exception, they will do the opposite.
Never install pirated or "cracked" software, software obtained from dubious websites, or other questionable sources. Illegally obtained software is almost certain to contain malware.
Don’t supply your password in response to a popup window requesting it, unless you know what it is and the reason your credentials are required.
Don’t open email attachments from email addresses that you do not recognize, or click links contained in an email:
Most of these are scams that direct you to fraudulent sites that attempt to convince you to disclose personal information.
Such "phishing" attempts are the 21st century equivalent of a social exploit that has existed since the dawn of civilization. Don’t fall for it.
Apple will never ask you to reveal personal information in an email. If you receive an unexpected email from Apple saying your account will be closed unless you take immediate action, just ignore it. If your iTunes or App Store account becomes disabled for valid reasons, you will know when you try to buy something or log in to this support site, and are unable to.
Don’t install browser extensions unless you understand their purpose. Go to the Safari menu > Preferences > Extensions. If you see any extensions that you do not recognize or understand, simply click the Uninstall button and they will be gone.
Don’t install Java unless you are certain that you need it:
Java, a non-Apple product, is a potential vector for malware. If you are required to use Java, be mindful of that possibility.
Disable Java in Safari > Preferences > Security.
Despite its name JavaScript is unrelated to Java. No malware can infect your Mac through JavaScript. It’s OK to leave it enabled.
Block browser popups: Safari menu > Preferences > Security > and check "Block popup windows":
Popup windows are useful and required for some websites, but popups have devolved to become a common means to deliver targeted advertising that you probably do not want.
Popups themselves cannot infect your Mac, but many contain resource-hungry code that will slow down Internet browsing.
If you ever see a popup indicating it detected registry errors, that your Mac is infected with some ick, or that you won some prize, it is 100% fraudulent. Ignore it.
Ignore hyperventilating popular media outlets that thrive by promoting fear and discord with entertainment products arrogantly presented as "news". Learn what real threats actually exist and how to arm yourself against them:
The most serious threat to your data security is phishing. To date, most of these attempts have been pathetic and are easily recognized, but that is likely to change in the future as criminals become more clever.
OS X viruses do not exist, but intentionally malicious or poorly written code, created by either nefarious or inept individuals, is nothing new.
Never install something without first knowing what it is, what it does, how it works, and how to get rid of it when you don’t want it any more.
If you elect to use "anti-virus" software, familiarize yourself with its limitations and potential to cause adverse effects, and apply the principle immediately preceding this one.
Most such utilities will only slow down and destabilize your Mac while they look for viruses that do not exist, conveying no benefit whatsoever - other than to make you "feel good" about security, when you should actually be exercising sound judgment, derived from accurate knowledge, based on verifiable facts.
Do install updates from Apple as they become available. No one knows more about Macs and how to protect them than the company that builds them.
Summary: Use common sense and caution when you use your Mac, just like you would in any social context. There is no product, utility, or magic talisman that can protect you from all the evils of mankind.

After installing Mavericks I can no longer save a new word document or pdf by typing the name of the destination folder in the Finder window. The save button greys out. Solutions anyone?

After installing Mavericks I can no longer save a new word document or pdf by typing the name of the destination folder in the Finder window. The save button greys out. Solutions anyone?

Please follow these directions to delete the Mail "sandbox" folders. In OS X 10.9 there are two sandboxes, while in 10.8 there is only one. If you're running a version older than 10.8, this comment isn't applicable.
Back up all data.
Triple-click anywhere in the line below on this page to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu.* A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder—not just its contents—to the Desktop. Leave the Finder window open for now.
Log out and log back in. Launch Mail and test. If the problem is resolved, you may have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window.
This action will delete any custom Mail stationery that you have created. If you want to preserve it, ask for instructions.
If you still have the problem, quit Mail again and put the folder back where it was, overwriting the one that may have been created in its place. Repeat with this line:
~/Library/Containers/com.apple.MailServiceAgent
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

My ImageClass MF4380dn Cannon Multifunction Copier driver no longer works after installing Mavericks. How can I resolve this?

My Image Class MF4380dn Cannon Multifunction Copier driver no longer works after installing Mavericks. I have checked with Cannon and they do not list my partricular machine among their driver updates. Is there another place to download a driver suitable for Mavericks?

Your MF4380dn is supported by the latest UFR2 v10.4.0 driver that supports 10.9. Here is a link from the Canon Australia web site,
http://support-au.canon.com.au/contents/AU/EN/0100491502.html
Before installing this driver, please remove the MF4380 from Printers & Scanners (unless you have already performed the reset that Carolyn mentions which will remove it for you). Then run the v10.4.0 installer and when it has completed, open Printers & Scanners and add the MF4380.

After installing mavericks my computer no longer boots. I had 10.6.8. I've been told I need to zero my hard drive. Is that the same as erasing? Is zeroing absolutely necessary? If u zero will I have any OS at all?

My MacBook is mid 2010 or 2011 and was running 10.6.8. After installing mavericks my computer tries to boot, says it has to restart and that circle goes on and on. Disk utilities says everything is running okay and reinstalling mavericks twice didn't help. I was told my hard drive needs to be zeroed. How is that different from erasing and is it necessary as opposed to erasing? After I back up on an external drive (I know I should have done that before hehe) and erase or zero, what will happen to my operating system? Will I have the ability to reinstall mavericks or do I need to out a copy of it on the external hard drive? I'm wondering this because I don't know if my computer will be running snow leopard or anything at all after I erase or zero since I'm not entirely sure what those terms entail. Thanks for any help!

Ooops.
I upgraded my 10.6.8 system to 10.7.5. ..No problem, but my practice is to connect an ESATA dock to my macpro. install to the drive in the doc, use migration assistant to migrate my data and apps.   use the os in the doc for 2 weeks, if no issue then I delete the OS partiton in my Internal System Drive, do a carbon copy clone to the internal drive.
I just did the similar to upgrade to mavericks.   I installed to a new hardrive in my docking station.   (black widow esata dock). I noticed 10.9.1 is slow stayed with 10.7.5 as my operating system. now and then I would boot 10.9.1 fire up the console utility and fix the issues that made it slow....
Now I am at the "burn in stage" mavericks is now running fast and stable.   I'll use all my apps and if it does not break with the applications I run I will eventaully cc my 10.7.5 OS drive to the docking station, file the drive away.. and take my 10.9.1 drive in the doc and cc it to my internal system drive.
I always wipe out a partion when installing a new OS. Zeroing out is a bit more thorough, you will know if your drive is junk... but it's overkill for me.
I figured repartion is ok.
I'm 2 weeks away from doing a carbon copy clone from my 10.9.1 os drive in my dock to my internal drive.
by the way.. I am running Mavericks on a 8 core macpro 2,1. I have a modified bootloader that has an arbitration layer EFI32 to/from EFI64 emulated.
pretty cool.
And from new system standards, the old macpro stacks up pretty well:

Creating a Mavericks USB boot drive after the horse has bolted. Can I create a bootable USB drive from my iMac after installing Mavericks without saving the Install OS X Mavericks.app file? Do I need to re- download the whole 5.29 Gb again?

Creating a Mavericks USB boot drive after the horse has bolted. Can I create a bootable USB drive from my iMac after installing Mavericks without saving the Install OS X Mavericks.app file? Do I need to re- download the whole 5.29 Gb from the App Store again? My problem is my 4Gb/month allowance on a 12 month contract. I cannot purchase a data block from my ISP and although my speed is theoretically slowed to 64k after reaching my 4Gb, it actually ceases to download in reality.

HI tasclix, it depends what you mean by an OS X boot drive.
If you want a recovery disk from which you can reinstall (by re-downloading) or recover from a time machine backup, then nbar is correct.
If, however, you want to boot and run the OS X installer from the USB drive (so that you don't need to download again), then you will need a copy of "Install OS X Mavericks.app"; see this article:
http://support.apple.com/kb/HT5856
Before downloading again, search your system to see if the installer is still there - it's usually in the /Applications folder unless it has been deleted, but check your whole system for it anyway, you never know, you might still have it somewhere.
Message was edited by: SilverSkyRat

Fans CONSTANTLY running after installing Mavericks

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