With mavericks the computer has become slow

Hi Pete. First time here so I'm hoping I'm doing this correctly.
I have the same problem - my applications are extrememly slow to open and shut down since I installed Mavericks. I used the Etrecheck and will past the results here.
thanks for your help.
Hardware Information:
    iMac (21.5-inch, Mid 2010)
    iMac - model: iMac11,2
    1 3.06 GHz Intel Core i3 CPU: 2 cores
    4 GB RAM
Video Information:
    ATI Radeon HD 4670 - VRAM: 256 MB
System Software:
    OS X 10.9.1 (13B42) - Uptime: 7 days 16:36:59
Disk Information:
    WDC WD5000AAKS-40V6A0 disk0 : (500.11 GB)
        EFI (disk0s1) <not mounted>: 209.7 MB
        Macintosh HD (disk0s2) /: 499.25 GB (333.69 GB free)
        Recovery HD (disk0s3) <not mounted>: 650 MB
    HL-DT-STDVDRW GA32N
USB Information:
    Logitech USB Trackball
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Internal Memory Card Reader
    Apple, Inc. Keyboard Hub
        Apple Inc. Apple Keyboard
    Apple Inc. Built-in iSight
    Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
    com.Logitech.Control Center.HID Driver    (3.6.0 - SDK 10.6)
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
    [System]    com.adobe.fpsaud.plist 3rd-Party support link
    [System]    com.google.keystone.daemon.plist 3rd-Party support link
    [System]    com.oracle.java.Helper-Tool.plist 3rd-Party support link
    [System]    com.oracle.java.JavaUpdateHelper.plist 3rd-Party support link
    [System]    com.prosoftnet.idrivedaemon.plist 3rd-Party support link
    [System]    org.macosforge.xquartz.privileged_startx.plist 3rd-Party support link
Launch Agents:
    [System]    com.epson.eventmanager.agent.plist 3rd-Party support link
    [System]    com.google.keystone.agent.plist 3rd-Party support link
    [System]    com.Logitech.Control Center.Daemon.plist 3rd-Party support link
    [System]    com.oracle.java.Java-Updater.plist 3rd-Party support link
    [System]    org.macosforge.xquartz.startx.plist 3rd-Party support link
User Launch Agents:
    [not loaded]    com.adobe.ARM.[...].plist 3rd-Party support link
    [not loaded]    com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist
User Login Items:
    EvernoteHelper
    AdobeResourceSynchronizer
    Microsoft AU Daemon
    Firefox
    iTunesHelper
    EvernoteHelper
    Dropbox
    Google Drive
    RealPlayer Downloader Agent
    iAntiVirus
Internet Plug-ins:
    o1dbrowserplugin: Version: 5.1.2.17113 3rd-Party support link
    Google Earth Web Plug-in: Version: 5.2 3rd-Party support link
    Default Browser: Version: 537 - SDK 10.9
    Flip4Mac WMV Plugin: Version: 2.4.4.2 3rd-Party support link
    RealPlayer Plugin: Version: (null) 3rd-Party support link
    AdobePDFViewerNPAPI: Version: 10.1.8 3rd-Party support link
    FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
    Silverlight: Version: 5.1.20513.0 - SDK 10.6 3rd-Party support link
    Flash Player: Version: 11.9.900.170 - SDK 10.6 Outdated! Update
    iPhotoPhotocast: Version: 7.0 - SDK 10.8
    googletalkbrowserplugin: Version: 5.1.2.17113 3rd-Party support link
    npgtpo3dautoplugin: Version: 0.1.44.29 - SDK 10.5 3rd-Party support link
    AdobePDFViewer: Version: 10.1.8 3rd-Party support link
    CouponPrinter-FireFox_v2: Version: Version 1.1.9 - SDK 10.5 3rd-Party support link
    QuickTime Plugin: Version: 7.7.3
    JavaAppletPlugin: Version: Java 7 Update 51 3rd-Party support link
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:
    Picasa: Version: 1.0 3rd-Party support link
    WebEx64: Version: 1.0 - SDK 10.5 3rd-Party support link
3rd Party Preference Panes:
    Flash Player 3rd-Party support link
    Flip4Mac WMV 3rd-Party support link
    Java 3rd-Party support link
    Launchpad-Control 3rd-Party support link
    Logitech Control Center 3rd-Party support link
Bad Fonts:
    None
Old Applications:
    /Library/Printers/EPSON/InkjetPrinter2/Utility/UT4
        EpsonSuppliesTool4:    Version: 8.75 - SDK 10.5 3rd-Party support link
        Epson Printer Utility 4:    Version: 8.75 - SDK 10.5 3rd-Party support link
    SLLauncher:    Version: 1.0 - SDK 10.5 3rd-Party support link
        /Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
    /Users/[redacted]/Library/Application Support/WebEx Folder/1326
        convertpdf:    Version: 1.2 - SDK 10.5 3rd-Party support link
        Cisco WebEx Event Center:    Version: 1205.09.2803.0 - SDK 10.5 3rd-Party support link
        asannotation2:    Version: 10.31.31.0 - SDK 10.5 3rd-Party support link
    Audiobook Builder:    Version: 1.5.3 - SDK 10.4 3rd-Party support link
Time Machine:
    Skip System Files: NO
    Auto backup: NO - Auto backup turned off
    Time Machine not configured!
Top Processes by CPU:
         4%    firefox
         2%    WindowServer
         2%    Quicken 2007
         1%    Dock
         1%    EtreCheck
Top Processes by Memory:
    999 MB    firefox
    160 MB    iTunes
    70 MB    Mail
    58 MB    mds_stores
    57 MB    Finder
Virtual Memory Information:
    44 MB    Free RAM
    1.13 GB    Active RAM
    1.10 GB    Inactive RAM
    578 MB    Wired RAM
    5.80 GB    Page-ins
    1.48 GB    Page-outs

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Recently downloaded Mac OS X Mavericks and Safari has become noticeably less responsive; slow to load web pages. Also, when Safari is open, the Finder randomly comes to the front. Any ideas?

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My mac has become slow since installing mavericks iOS

Since installing the Mavericks OS my Mac has become slow and unresponsive, it freezes up all of the time and I always have to wait for the different software to load once I have clicked on the icon.
Before I installed Mavericks when I clicked on a program it opened straight away and I could use it immediatly, is any one else having this problem?
Thank you

Here's your report with some comments in red:
Hardware Information:
          MacBook (13-inch, Late 2009)
          MacBook - model: MacBook6,1
          1 2.26 GHz Intel Core 2 Duo CPU: 2 cores
          2 GB RAM Mavericks will run with 2 GB of RAM, but it won't run well. I know the specs say 2, but 4 is a more realistic minimum for reasonable performance. You have page-outs (see the last line of the report), which means that tasks are being paged out to your virtual memory (i.e., your hard drive), because your RAM is full. The page outs might go down if you fix some of the possible problems below, and your performance might improve; if it doesn't, you might consider putting more RAM in your Mac.
Video Information:
          NVIDIA GeForce 9400M - VRAM: 256 MB
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
System Software:
          OS X 10.9 (13A603) - Uptime: 0 days 2:28:43
Disk Information:
          Hitachi HTS545025B9SA02 disk0 : (250.06 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 249.2 GB (143.58 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-898
USB Information:
          Apple Inc. Built-in iSight
          Apple Inc. Apple Internal Keyboard / Trackpad
          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
          com.rim.driver.BlackBerryUSBDriverInt          (0.0.74)   This might be a problem. See below.
Problem System Launch Daemons:
Problem System Launch Agents:
The next categories are loaded at startup and are potential causes for poor performance, as they run all the time, in the background. The green ones are potential problems, the red ones are definite problems. See below for my suggestions.
Launch Daemons:
          [loaded] cn.com.zte.MessageCenter.plist
          [loaded] cn.com.zte.PPPMonitor.plist
          [loaded] com.adobe.fpsaud.plist
          [loaded] com.rim.BBDaemon.plist
          [loaded] com.trusteer.rooks.rooksd.plist
Launch Agents:
          [loaded] cn.com.zte.usbswapper.plist
          [loaded] com.rim.BBAlbumArtCacher.plist
          [loaded] com.rim.BBLaunchAgent.plist
          [loaded] com.trusteer.rapport.rapportd.plist
User Launch Agents:
          [failed] com.apple.CSConfigDotMacCert-[redacted]@me.com-SharedServices.Agent.plist
          [loaded] com.divx.agent.postinstall.plist
User Login Items:
          iTunesHelper
          Nokia Multimedia Transfer 2
          LexmarkNetworkServices
          3600-4600 Series Button Monitor
          BlackBerry Device Manager
3rd Party Preference Panes:
          DivX
          Flash Player
          Flip4Mac WMV
          Perian
          Trusteer Endpoint Protection
Internet Plug-ins::
          Flip4Mac WMV Plugin: Version: 2.4.4.2
          FlashPlayer-10.6: Version: 11.9.900.152 - SDK 10.6
          JavaAppletPlugin: Version: 14.8.0 - SDK 10.9 Outdated! Update
          Flash Player: Version: 11.9.900.152 - SDK 10.6
          Default Browser: Version: 537 - SDK 10.9
          DivXBrowserPlugin: Version: 2.2
          OVSHelper: Version: 1.1
          OfficeLiveBrowserPlugin: Version: 12.3.6
          QuickTime Plugin: Version: 7.7.3
          Silverlight: Version: 5.1.10411.0 - SDK 10.6
          iPhotoPhotocast: Version: 7.0
Bad Fonts:
          None
Old applications: make sure these are up to date and compatible with Mavericks.
          Microsoft AutoUpdate:          Version: 2.3.6 - SDK 10.4
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
          Microsoft Error Reporting:          Version: 2.2.9 - SDK 10.4
                    /Library/Application Support/Microsoft/MERP2.0/Microsoft Error Reporting.app
          Microsoft Ship Asserts:          Version: 1.1.4 - SDK 10.4
                    /Library/Application Support/Microsoft/MERP2.0/Microsoft Ship Asserts.app
          SLLauncher:          Version: 1.0 - SDK 10.5
                    /Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Time Machine:
          Skip System Files: NO
          Auto backup: YES
          Volumes being backed up:
                    Macintosh HD: Disk size: 232.09 GB Disk used: 98.36 GB
          Destinations:
                    Paul Jones's Time Capsule M [Network] (Last used)
                    Total size: 463.76 GB
                    Total number of backups: 47
                    Oldest backup: 2012-10-07 00:53:03 +0000
                    Last backup: 2013-12-08 15:20:17 +0000
                    Size of backup disk: Adequate
                              Backup size 463.76 GB > (Disk used 98.36 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%          BBLaunchAgent
               0%          Mac_SwapperDemon
               0%          rapportd
Top Processes by Memory:
          121 MB          Safari
          119 MB          com.apple.WebKit.WebContent
          115 MB          softwareupdated
          66 MB          WindowServer
          66 MB          Mail
Virtual Memory Statistics:
          33 MB          Free RAM
          716 MB          Active RAM
          688 MB          Inactive RAM
          282 MB          Wired RAM
          435 MB          Page-ins
          9 MB          Page-outs page outs are bad.
Suggestions:
First, make sure you have a good backup.
What to do about the items in green:
The items in green are third party software that may be a problem. They run all the time in the background, and thus may be making things slow. You can test this theory: try a safe boot (restart, hold down shift until you see the Apple logo). A safe boot does some diagnostic checking and then starts up without third party added-on software. If this eliminates the symptoms, then you know the problem is with a third-party item. Mac OS X: What is Safe Boot, Safe Mode?
I don't know if the green ones are a problem or not, but they are on the list of suspects, and you're going to need to do some research yourself.
The general philosophy is:
Figure out what the application is that is responsible for a particular green item.
If you can live without the application, it, uninstall it. You should uninstall the entire application that is responsible, not just the green bit. The best way is with an uninstaller from the developer of the application. If there's no uninstaller (one of the hallmarks of crapware), then an internet search may help (as in, "uninstall crapapp mac", where crapapp is the name of the software in question). After uninstalling the app, restart, see how your symptoms are, and run Etrecheck again. I am a fan of AppZapper for uninstalling apps, if there is no uninstaller from the developer. AppZapper - The uninstaller Apple forgot.
Sometimes, after you have run an uninstaller or manually uninstalled a suspect application, one of those green bits will still be on the Etrecheck report. If your Mac's symptoms have resolved, it's better to leave well enough alone and leave it there. If you must, you can try a modified Finder search to find the stubborn green bit and remove it. These system files do not show up in a default Finder or Spotlight Search.
If you can't live without this app, then at least make sure it is up to date and compatible with Mavericks.
What to do about the items in red
These are definite problems and should be fixed if they are Apple software. They should be fixed or uninstalled if they are third party developer software.
For red Apple items, I would try:
repairing your hd. Boot into your recovery partition (restart, hold down ⌘R until you see the Apple logo), and use Disk Utility to repair your hard drive. Repair permissions too while you're there. OS X: About OS X Recovery Then restart, reassess performance, and rerun Etrecheck.
If that doesn't work, I'd try Techtool, which can occasionally fix something that disk utility can't. Techtool Pro 7 Then restart, reassess performance, and rerun Etrecheck.
If that doesn't work, I'd reinstall Mavericks over your current installation. Restart, reassess, and Etrecheck.
If that doesn't work, you're looking at the nuclear option: backup your documents, erase your HD, and do a clean reinstall of Mavericks.
For red non-Apple software, I'd uninstall it and then recheck with Etrecheck. Then if you must reinstall it, make sure it's up to date and compatible with Mavericks.

My computer has become much slower and may have been infected. Is there any course of action I can take in solving this problem?

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Since updating my Mac Book Pro from Mountain Lion to Maverick the computer is running slowly. Its slow to open and slow to download

Hi since updating my Mac Book Pro from Mountain Lion to Maverick the computer is running slow

When you have the problem, note the exact time: hour, minute, second.
If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console 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. Click Utilities, then Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above. Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first. Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V).
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. In most cases, a few dozen lines are more than enough. It is never necessary or helpful to post more than about 100 lines. "The more, the better" is not the rule here.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.

Ever since I installed MAVERICK, nothing now works, Flash Player won't run, printer works but scanner will not and the computer runs so slow. Any help anywhere?

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wqn02h, first thing I would do is use Disk utility to repair permissions. Once this is done. Make sure you have the latest versions of the software you use. Also, check the manufacter of your printer/scanner for updated software. If they don't have updated software there are 3rd party alternatives that will work.
Paul

My macbook is five years old and has become slow. often displays the whirling kaleidoscope. can anyone please give me advice on what to do?

My macbook is five years old and has become slow. often displays the whirling kaleidoscope. can anyone please give me advice on what to do?

Quite often the HDD is the source of the problems. Look at this comprehensive guide for possible solutions:
https://discussions.apple.com/docs/DOC-3521
Ciao.

HT201412 I am reading an e-book and the screen has become blurred to the point that you cannot even see the letter. I checked the e-book in another computer and can be seen without problems. What's worst, when this happens all the web sites have the same

I am reading an e-book and the screen has become blurred to the point I cannot see the letters. Other pages are patched grey. I checked the ebook in another computer and it shows no problem. Also, when this happens, other web sites get blurred or patched. Do you know what can it be?

You can try giving it a reset. Hold down the sleep and home keys for about 20 seconds. When you see the silver apple, let go and let it reboot. See if that helps.
But if it doens't or if hte issue repeats you may want to make an appointment at your local apple store and have them check it out.

How to recreate account.plist after the file has become corrupt

I updated my system to Mavericks last week and ever since my computer has become dramtically slow. Especially Mail takes about 30 minutes to open. I have discovered that the fault is caused by my account.plist file as it is 24 MB which seems way to big. I have already deleted the file and then Mail opens well and fuctions normal.
However when I add my accounts again it creates new POP folders in the V2 folder instead of using the old existing ones and it starts downloading the emails that still remain on the server. I would like to keep keep all emails etc just the way they are already on the system but basically just recreate a fresh "account.plist" file. How can I do this without the issue that mail creates new folders but just uses the existing folders???
I also already tried the following:
- delete "account.plist"
- Add new account in Mail
- New folder is created in the V2 folder for that email address
- Copy the old mbox files for that account into the automatically new created folder
The above seems to work but mail still starts downloading 200+ plus emails from the server.......
Any help how I can edit my account.plist file and delete unnessesary items there?? It seems that there is a lot of text in the file regarding my hotmail account and I expect that this is causing it to be so large. I have no idea though how to read this file and what I can delete and what not.....
At this moment I am pretty stuck and any help is welcome here.

These fixes have helped others, depending on the situation. I don't see one addressing your particular problem but they won't hurt.
Have an up-to-date Time Machine or other backup before attempting any major software updates or rebuilds.
For more about backups:
Time Machine Basics: http://support.apple.com/kb/ht1427
Most commonly used backup methods:
https://discussions.apple.com/docs/DOC-3045
Methodology to protect your data. Backups vs. Archives. Long-term data protection:
https://discussions.apple.com/docs/DOC-6031
Make sure your software is up to date. Apple recently released a Mail update.
Apple > Software Update...
A general repair to fix odd behaviors in Mail is Mailbox > Rebuild.
Try booting in Safe Mode.
          Boot and when you hear the bong hold down the Shift key.
          It will boot slowly. Be patient.
          Login the the user account.
          Restart.
Another fix to try:
Shut down Mail.
Open the Finder. From the Finder menu bar click Go > Go to Folder
Copy and paste the following
~/Library/Mail/V2/MailData/
Click Go.
Move all "Envelope" files to your desktop.
Restart Mail and let it convert/reindex your mailboxes.
If this worked, Trash the Envelope files file that are on your desktop,
if not shut down Mail and put them back.
Another fix:
Shut down Mail.
Open the Finder. From the Finder menu bar click Go > Go to Folder
Copy and paste the following:
~/Library/Containers/com.apple.mail/Data/Library/Caches/com.apple.mail/Cache.db
Click Go.
Move the Cache.db file to the Trash.
Restart your Mac and try Mail.
You can try restoring mail from a Time Machine backup.
Hold down the Option key and in the Finder Go > Library
Enter Time Machine.
Select a date and time from when Mail was working.
Restore Mail.
Advice from another thread: https://discussions.apple.com/message/23657222#23657222
If mailboxes are missing:
Linc Davis
Re: downloaded Mavericks and cannot find mailboxes, any ideas
Nov 3, 2013 9:24 PM (in response to always need hlep)
Quit Mail. Force quit if necessary.
Back up all data. That means you know you can restore the Mail database, no matter what happens.
Triple-click anywhere in the line below on this page to select it:
~/Library/Mail/V2/MailData/Envelope Index
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. Paste into the box that opens (command-V), then press return.
A Finder window will open with a file selected. Move the selected file to the Desktop, leaving the window open. Other files in the folder may have names that begin with "Envelope Index". Move those files, if any, to the Trash.
Log out and log back in. Relaunch Mail. It should prompt you to re-import your messages. You may get a warning that the index is damaged and that Mail has to quit. Click OK.
Test. If Mail now works as expected, you can delete the file you moved to the Desktop. Otherwise, post your results.

What is the cause for the mac to become slow

what is the cause for the mac to become slow?

Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with a visit to: OS X Maintenance - MacAttorney.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion/Mountain Lion
Boot from your OS X 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.
Repair the Hard Drive - Lion/Mountain Lion
Boot from your Lion Recovery HD. When the recovery menu appears select Disk Utility. 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, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
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.
Restart your computer normally and see if this has helped any. Next do some maintenance:
Suggestions for OS X Maintenance
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or Lion and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems. For more about malware see Macintosh Virus Guide.
I would also recommend downloading a utility such as TinkerTool System, OnyX 2.4.3, or Cocktail 5.1.1 that you can use for periodic maintenance such as removing old log files and archives, clearing caches, etc.
For emergency repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. There is no confirmation that this version also works with Lion.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Data Backup
3. Deja Vu
4. SuperDuper!
5. SyncTwoFolders
6. Synk Pro
7. Synk Standard
8. Tri-Backup
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac maintenance Quick Assist.
Referenced software can be found at CNet Downloads or MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file.

I am facing what appears to be a malware, my browsing is slow, my browser hangs and also my system has become slow

I am facing what appears to be a malware, my browsing is slow, my browser hangs and also my system has become slow, these are symptoms, I cant watch videos on youtube

You installed the "DownLite" trojan, perhaps under a different name. Remove it as follows.
Back up all data.
Triple-click anywhere in the line below on this page to select it:
/Library/Application Support/VSearch
Right-click or control-click the line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item named "VSearch" selected. Drag the selected item to the Trash. You may be prompted for your administrator login password.
Repeat with each of these lines:
/Library/LaunchAgents/com.vsearch.agent.plist
/Library/LaunchDaemons/com.vsearch.daemon.plist
/Library/LaunchDaemons/com.vsearch.helper.plist
/Library/LaunchDaemons/Jack.plist
/Library/PrivilegedHelperTools/Jack
/System/Library/Frameworks/VSearch.framework
After moving all the files, restart the computer and empty the Trash.
From the Safari menu bar, select
Safari ▹ Preferences... ▹ Extensions
Uninstall any extensions you don't know you need, including any that have the word "Spigot" in the description. If in doubt, uninstall all extensions. Do the equivalent for the Firefox and Chrome browsers, if you use either of those.
This unwanted program is distributed on illegal websites that traffic in pirated movies. If you, or anyone else who uses the computer, visit such sites and follow prompts to install software, you can expect much worse to happen in the future.
*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, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.

After installing maverick my computer is very slow

after installing maverick my computer is very slow, what can I do?

First, back up all data immediately, as your boot drive might be failing.
Step 1
This diagnostic procedure will query the log for messages that may indicate a system issue. It changes nothing, and therefore will not, in itself, solve your problem.
If you have more than one user account, these instructions must be carried out as an administrator.
Triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|timed? ?o' | tail | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the 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. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. Normally the command will produce no output, and the window will be empty. If the TextEdit window (not the Terminal window) has anything in it, stop here and post it — the text, please, not a screenshot. The title of the TextEdit window doesn't matter, and you don't need to post that.
Step 2
There are a few other possible causes of generalized slow performance that you can rule out easily.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Reset the System Management Controller.
Run Software Update. If there's a firmware update, install it.
If you're booting from an aftermarket SSD, see whether there's a firmware update for it.
If you have a portable computer, check the cycle count of the battery. It may be due for replacement.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane. See whether there's any change.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
If you have a MacBook Pro with dual graphics, disable automatic graphics switching in the Energy Saverpreference pane for better performance at the cost of shorter battery life.
Step 3
When you notice the problem, launch the Activity Monitor 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. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the View menu or the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for User, System, and Idle at the bottom of the window.
Select the Memory tab. What value is shown in the bottom part of the window for Swap used?
Next, select the Disk tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in andWrites out.)
Step 4
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard by pressing the key combinationcommand-C. Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

My Macbook pro 10.6.8 has become slow in recent days

My Macbook pro has become slow in recent days. I have installed Macafee internet security software and not sure whether this is slowing down my system. Especially Safari has become really slow. The videos stuck, when another webpage gets loaded in another tab. The rainbow circle keeps appearing oftern in safari. The pages are very slow in response, even scrolling takes a good minute or two. The applications are taking more time to load. I admired my mac for its quick response, but snow leopard has turned into a snow turtle.

I also finger McAffee as the culprit, it's not necessary on Mac's as of 10.6.8+ Apple installed their own anti-OS X malware detector and it checks for updates like every 26 hours or so.
If you need to clean the Windows malware off their files, the free ClamXav does the job nicely and doesn't bugger up the machine as it's run as you need it.
For your other slowdown issues, I suggest you look through these tips of mine, my Snow Leopard is incredibly fast.
Why is my computer slow?
Diagnosing network issues
Tune up your Mac here
For Snow Leopard Speed Freaks
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

The computer is getting slow

1.HP Pavilion Slimline s5216f
2. windows 7 64-bit
3. the computer is getting slow and the fun is always too loud, sometimes the cpu usage is 100%. also, it would auto-shut down without any signs.
4.a new printer and a broken Computer power supply was changed months before, it was from the HP.

And my computer is getting warm all the times so the "wind blower" has to turn on and disturb me so much!!!
Its getting so annoyng with all the lag and noise its doing when im tryng to do something

With mavericks the computer has become slow

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