What is WmiPrvSE.exe and why is it causing high CPU usage?
Question by Rohit Raj /
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Hello all,

My CPU usage is always around 30-40% even when no applications are running. On starting applications, such as Windows Media Player or Chrome, it goes past 70-80%, sometimes even 100%. Task Manager shows “WmiPrvSE.exe” to be the reason for it.

I have tried searching for malware, some infected files were removed, but this didn’t improve performance.

I have no idea how to solve problem. Please help!

Thank you

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Answers (14)
  • Rich

    I also want to thank you- that made a major difference in the CPU% and stopped the fan from running constantly.

    • Ian S

      Thanks RED. A neat fix. How on earth did you find that out and Microsoft do not seem to have a patch fix

  • RED66

    Found an easy fix to this problem. Restart the "Windows management Instrumentation" Service. The dependent services will restart in the proper order and you'll see the CPU go way down to normal levels.

    • Kevindadof1

      How do you restart this service?

    • mikers

      That worked.Thank you RED66. This brought the CPU % down instantly.

      Kevindadof1 , just access your Services program. The easiest way to find is just click Start, type Services, hit Enter. Under Services (Local), scroll down until you find the "Windows Management Instrumentation" service and select Restart.

    • Colin

      Thanks for the tip. Worked like a charm. That one has been bugging me for a long time.

    • Martynas

      THNX worked like a charm!

    • Muti

      Thank RED66 and mikers, this was very helpful. It really worked like a charm.

    • Bob

      Brilliant! Been searching for a simple fix for ages. BTW, sussundeep's link above is only for windows server NOT Win 7

  • ha14

    Wmiprvse.exe is microsoft service but virus and malware can disguise themselves under this name like W32/Sasser (wmiprvsw.exe)

  • Rajaa Chowdhury

    Nothing more to add, others have summed it up for you and susendeep have provided you a fix, so try that.

  • Alan Wade

    It is NOT necessarily a virus!

    You can read more about it here:

  • susendeep dutta

    Description of WmiPrvSE.exe

    Find the WmiPrvSE.exe file in C:WindowsSystem32wbem.

    Kindly download and install the fix provided by Microsoft -

    High CPU utilization generated by the wmiprvse.exe process

    Also,look up for startup programs which and disable those which you don't need it.But don't disable Microsoft services.

    If not visible,then definitely infected by something.

  • Prashant M

    The wmiprvse.exe file is located in the folder C:WINDOWSSystem32Wbem. In other cases, wmiprvse.exe is a virus, spyware, trojan or worm! Check this process explorer
    You can download it from link below

    If it is a trojan run a scan with antivirus and then with Malware byte or use avast for boottime scanning

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