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High CPU after Win 8.1 update RRS feed

  • Question

  • Hi Andre,

    I am having the same problem as the others.  I have checked for viruses with McAfee and Malwarebytes.  Found nothing.  I disabled the Application Experience Service in Task Scheduler and Windows Backup.  The CPU was still high.  Could you take a look at the WTP i created?  https://skydrive.live.com/redir?resid=F39F6E8BBE355586!1333&authkey=!AJrOROuWbiK2cs4

    Thank you!

    Saturday, November 9, 2013 7:25 PM

Answers

  • You don't have the issue like others. You have a high CPU usgae because you've enabled Driver Verifier. I can see this from calls like ntoskrnl.exe!ViKeTrimWorkerThreadRoutine or ntoskrnl.exe!VerifierExEnterCriticalRegionAndAcquireResourceExclusive.

    Disable driver verifier (http://msdn.microsoft.com/en-us/library/windows/hardware/ff556083%28v=vs.85%29.aspx) with

    verifier /reset 

    reboot and the CPU usage should be gone.


    "A programmer is just a tool which converts caffeine into code"

    • Marked as answer by kelvin_hsu Sunday, November 17, 2013 10:57 AM
    Saturday, November 9, 2013 7:41 PM
    Answerer

All replies

  • You don't have the issue like others. You have a high CPU usgae because you've enabled Driver Verifier. I can see this from calls like ntoskrnl.exe!ViKeTrimWorkerThreadRoutine or ntoskrnl.exe!VerifierExEnterCriticalRegionAndAcquireResourceExclusive.

    Disable driver verifier (http://msdn.microsoft.com/en-us/library/windows/hardware/ff556083%28v=vs.85%29.aspx) with

    verifier /reset 

    reboot and the CPU usage should be gone.


    "A programmer is just a tool which converts caffeine into code"

    • Marked as answer by kelvin_hsu Sunday, November 17, 2013 10:57 AM
    Saturday, November 9, 2013 7:41 PM
    Answerer
  • Had the same issue with todays update, uninstalled it and now i'm fine. Is it possible it's my driver verifier?
    Sunday, November 10, 2013 12:02 AM
  • Is it possible it's my driver verifier?
    what do you mean?

    "A programmer is just a tool which converts caffeine into code"

    Sunday, November 10, 2013 6:42 AM
    Answerer
  • I am having similar issues. A process called "System" in the task manager is eating up 6 to 10 % CPU usage. Opening its file location seems to reveal that its "ntoskrnl" application. Driver verifier reset did not seem to do the trick. Any other solutions? 
    Sunday, April 20, 2014 12:13 PM
  • I did that as soon as the laptop booted for the first time (Its a Y510p and lenovo loads up a lot of crapware). IS 6 to 10 % high for the ntoskrnl or am I being paranoid?
    Sunday, April 20, 2014 5:06 PM