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Explorer.exe using 50% CPU, extremely slow RRS feed

  • Question

  • Hi, for some months now explorer.exe has been using a ton of CPU and it gets to the point of being un-usable (disabling explorer.exe) Please help.
    Saturday, January 29, 2011 7:33 AM

Answers

  • Windows 7 Is Slow

    1) Unplug any peripherals such as printers, external drives, microphone, webcams etc.
    2) Make sure your BIOS and drivers are up to date. Updating the BIOS can be risky, only do this if nothing else works.
    3) Defragment Your Windows 7 Computer:
    http://windows.about.com/od/maintainandfix/ss/SBSdefragWin7.htm


    4) Reduce Start Up Programs:
       A). Click Start, type MSCONFIG in the Start Search box, and then press Enter.
          OK User Account Control permission and enter password if any
       B) On the General tab, click Selective Startup.
       C) Next change tabs by clicking the Startup tab
       D) Uncheck programs you don't want to start when the computer boots (do not uncheck your antivirus or firewall program).
       E) Click OK, then restart the computer.


    5) Disable Some Visual Effects in Windows 7
       There are many visual effects that can be safely disabled to speed up windows 7.
       A. For this right click on "Computer" and select "Properties" from the right click menu.
       B. Click on "Advanced System Settings" from the left pane to open up the "System Properties" window.
       C. Select the "Advanced" tab from it. Then under "Performance" click "Settings".
       D. Now untick any of the options you don't want to use (some options will disable Aero).
       E. Click OK and restart the computer.


    6) Open the Performance Troubleshooter
       A. Open the Performance Troubleshooter by clicking the Start button.
       B. In the search box, type "troubleshooter," and then click Troubleshooting.
       C. Under System and Security, click Check for performance issues.


    7) Try Repairing The Windows 7 Installation
       A. Insert the Windows 7 DVD or repair disk and restart your computer
       B. Boot from the DVD.
       C. Choose your language and click Next.
       D. Click Repair Your Computer and then select the operating system you want to repair.
       E. Click on the Startup Repair link from list of recovery tools in System Recovery Options.


    8) Installed programs - if this started after you installed a certain program, uninstall it and see if the problem has gone away.

     

     


    Have Questions About Installing Windows 7?
    FAQ - Common Windows 7 Installation Questions & Answers
    • Marked as answer by Leo Huang Tuesday, February 8, 2011 7:25 AM
    Saturday, January 29, 2011 8:50 AM

All replies

  • Windows 7 Is Slow

    1) Unplug any peripherals such as printers, external drives, microphone, webcams etc.
    2) Make sure your BIOS and drivers are up to date. Updating the BIOS can be risky, only do this if nothing else works.
    3) Defragment Your Windows 7 Computer:
    http://windows.about.com/od/maintainandfix/ss/SBSdefragWin7.htm


    4) Reduce Start Up Programs:
       A). Click Start, type MSCONFIG in the Start Search box, and then press Enter.
          OK User Account Control permission and enter password if any
       B) On the General tab, click Selective Startup.
       C) Next change tabs by clicking the Startup tab
       D) Uncheck programs you don't want to start when the computer boots (do not uncheck your antivirus or firewall program).
       E) Click OK, then restart the computer.


    5) Disable Some Visual Effects in Windows 7
       There are many visual effects that can be safely disabled to speed up windows 7.
       A. For this right click on "Computer" and select "Properties" from the right click menu.
       B. Click on "Advanced System Settings" from the left pane to open up the "System Properties" window.
       C. Select the "Advanced" tab from it. Then under "Performance" click "Settings".
       D. Now untick any of the options you don't want to use (some options will disable Aero).
       E. Click OK and restart the computer.


    6) Open the Performance Troubleshooter
       A. Open the Performance Troubleshooter by clicking the Start button.
       B. In the search box, type "troubleshooter," and then click Troubleshooting.
       C. Under System and Security, click Check for performance issues.


    7) Try Repairing The Windows 7 Installation
       A. Insert the Windows 7 DVD or repair disk and restart your computer
       B. Boot from the DVD.
       C. Choose your language and click Next.
       D. Click Repair Your Computer and then select the operating system you want to repair.
       E. Click on the Startup Repair link from list of recovery tools in System Recovery Options.


    8) Installed programs - if this started after you installed a certain program, uninstall it and see if the problem has gone away.

     

     


    Have Questions About Installing Windows 7?
    FAQ - Common Windows 7 Installation Questions & Answers
    • Marked as answer by Leo Huang Tuesday, February 8, 2011 7:25 AM
    Saturday, January 29, 2011 8:50 AM
  • Hi,

    please make a xperf trace [1] to diagnostic the high CPU usage of the Explorer.exe. Please upload the etl file to your SkyDrive [2] and post a link here.

    I'll take a look at it, maybe I can see more details.

    André

    [1] http://www.msfn.org/board/index.php?showtopic=140264
    [2] http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/4fc10639-02db-4665-993a-08d865088d65
    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    Saturday, January 29, 2011 2:49 PM