MsMpENG.exe using over 50% of CPU.


  1. Posts : 26
    MS Windows 10 Home 64-bit
       #1

    MsMpENG.exe using over 50% of CPU.


    So I have tried everything I have read but this issue is not going away. So I can't seem to get this program to stop using all my cpu.

    I have tried the following I have read in the following order:
    1. Told Windows Defender to stop scanning itself.
    2. Installed a different Anti-virus so it turns off Windows Defender.
    3. Add in that registry key to disable Windows Defender.

    Windows Defender is not running for sure as I can't open it anymore due to the registry key but MsMpEng is still running and using all my cpu. I also did do a scan with both Windows Defender and my new antivirus program as well as Malwarebytes. No threats found. Ran CCleaner to see if that could find anything. Nothing.

    So I give up. I've tried everything and nothing seems to work. I've also tried to change the affinity of the program but "access is denied".

    So anything else I missed? I'm able to get this fixed so I can continue using Windows Defenders as I'm use to that, that would be great, if not and I have to use another anti virus program that is fine too, but then how do I completely get rid of MsMpEng.exe?
      My Computer


  2. Posts : 5,442
    Windows 11 Home
       #2

    Download Windows Defender Disable, run it as admin and then restart the computer.
    Last edited by TairikuOkami; 25 Aug 2019 at 14:55.
      My Computer


  3. Posts : 26
    MS Windows 10 Home 64-bit
    Thread Starter
       #3

    Thanks for the reply but I prefer not doing things like that unless it's a last resort. I want to see if there are any other options first. I did notice that the "WinDefend" service status is currently "Stopping" and never actually finishing. I wonder if that could be because of the high cpu. I now want to see what it was doing before switching anti virus.
      My Computer


  4. Posts : 5,442
    Windows 11 Home
       #4

    Windows Defender has 4 services, which can keep running, even when it is disabled. MsMpENG being one of them.
      My Computer


  5. Posts : 26
    MS Windows 10 Home 64-bit
    Thread Starter
       #5

    I wanted to see if I could fix Windows Defender first before actually switching for the a new antivirus so that was what I meant about not wanting to run right away.

    Anyway, it turns out I somehow fixed it. I wanted to see what the status said if I was to uninstall the new anti virus and reenable Windows Defender. Turns out that somehow actually fixed the issue.

    So I guess there is a new solution. Install a different antivirus and then uninstall that antivirus.
      My Computer


  6. Posts : 5,442
    Windows 11 Home
       #6

    Danielzxzx said:
    I wanted to see if I could fix Windows Defender first before actually switching for the a new antivirus
    In that case, try to add MsMpEng.exe to the exclusion list:
    "C:\Program Files\Windows Defender\MsMpEng.exe"
      My Computer


  7. Posts : 26
    MS Windows 10 Home 64-bit
    Thread Starter
       #7

    That was something I had actually tried before but didn't fix the issue.
      My Computer


  8. Posts : 1
    windows 10
       #8

    Trying the BAT file


    TairikuOkami said:
    Download "Disable WD.bat", run it as admin and then restart the computer.
    Thanks, I am trying this solution now for a client. I can hardly work on his computer remotely. It is so slow because all the resources are being used up by WD...even after I followed the other recommended solutions. I will report back and edit this post.
      My Computer


  9. Posts : 41,412
    windows 10 professional version 1607 build 14393.969 64 bit
       #9

    This is an old thread.
    Consider opening a new thread and posting a link into this thread.

    Place the computer in clean boot > report any changes in task manager
    Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts

    On a working computer create a bootable Windows 10 iso:
    https://www.microsoft.com/en-us/soft...load/windows10
    Download Windows 10 ISO File

    Perform an in place upgrade repair while in clean boot:
    Repair Install Windows 10 with an In-place Upgrade


    Update the specs in the "My Computer" section:

    System Specs - Fill in at Ten Forums
    In the left corner below in your post you find 'My System Specs'.
    After clicking it you can find a link a little below that says 'Update your System Spec', click on this link to get to the page where you can fill in your system specs.
    System Info - See Your System Specs - Windows 7 Help Forums

    Include PSU. cooler, case, peripherals and anything attached to the computer by wired or wireless (mouse, keyboard, headset, printer, xbox, USB wireless network card, etc.)
      My Computer


 

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