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BSOD: Error Code 0x000000D4. Pacer.sys corrupted

    Question

  • Recently, I'm getting the BSOD when doing the POST. It states that the pacer.sys file is corrupted. However, when I go into safe mode, the OS loads successfully.  My Os is Vista 32 SP2.

     

    Please advise how I would be able to resolve this challenge?

    Thanks

    • Moved by Carey FrischMVP, Moderator Tuesday, May 10, 2011 9:16 PM Moved to more appropriate forum category (From:Windows Vista Announcements)
    Tuesday, May 10, 2011 8:04 PM

Answers

  • Hi,

    Is there any newly installed software\update?

    Please restore the system to a previous working state to check the result first.

    If the issue persists, certain things you can try are to find out the root cause of the problem are given below.
     
    1.  Have a look whether you can reproduce the problem in safe mode.
     
    Start your computer in safe mode
    http://windows.microsoft.com/en-US/windows-vista/Start-your-computer-in-safe-mode
     
    If behavior doesn’t persist in safe mode, it indicates that a third party program or service is preventing you from performing the action as supposed to.
     
    To validate or determine which service/startup item could be causing this, restart the computer and boot to desktop normally. Once done, perform clean boot.
     
    2.  Clean Boot prevents software conflicts by preventing the startup items and non Microsoft services from loading. This way you can safely follow the process of elimination to check which application is causing this behavior.
     
    Refer:
    How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
    http://support.microsoft.com/kb/929135
    Note: Ensure that you put your computer back to normal startup mode after completing the troubleshooting steps. Steps are available in the article given above.

    Regards,


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”
    Thursday, May 12, 2011 7:05 AM
    Moderator

All replies

  • Please use Microsoft Skydrive to upload dump files (c:\windows\minidumps) and post a link here. I will try to determine the faulty driver.

    If the pacer.sys driver is corrupted then I would recommend the re-install of the OS.

    Before that run sfc /scannow and check if this solve your problem.

     


    This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

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    Tuesday, May 10, 2011 9:13 PM
  • Hi,

    Is there any newly installed software\update?

    Please restore the system to a previous working state to check the result first.

    If the issue persists, certain things you can try are to find out the root cause of the problem are given below.
     
    1.  Have a look whether you can reproduce the problem in safe mode.
     
    Start your computer in safe mode
    http://windows.microsoft.com/en-US/windows-vista/Start-your-computer-in-safe-mode
     
    If behavior doesn’t persist in safe mode, it indicates that a third party program or service is preventing you from performing the action as supposed to.
     
    To validate or determine which service/startup item could be causing this, restart the computer and boot to desktop normally. Once done, perform clean boot.
     
    2.  Clean Boot prevents software conflicts by preventing the startup items and non Microsoft services from loading. This way you can safely follow the process of elimination to check which application is causing this behavior.
     
    Refer:
    How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
    http://support.microsoft.com/kb/929135
    Note: Ensure that you put your computer back to normal startup mode after completing the troubleshooting steps. Steps are available in the article given above.

    Regards,


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”
    Thursday, May 12, 2011 7:05 AM
    Moderator