How to I stop MoUsoCoreWorker.exe from running or get it to run & end?

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  1. Posts : 28
    Win10 Pro 64Bit
       #1

    How to I stop MoUsoCoreWorker.exe from running or get it to run & end?


    Win10: v20H2 (OS Build 19042.804)

    This has only been a issue for the last few weeks, not entirely certain but I believe since the last monthly Windows update in February and certainly not before the January update.

    PS C:\Windows\system32> powercfg /requests

    DISPLAY: None.

    SYSTEM: None.

    AWAYMODE: None.

    EXECUTION: [PROCESS] \Device\HarddiskVolume3\Windows\System32\MoUsoCoreWorker.exe
    USO Worker

    PERFBOOST: None.

    ACTIVELOCKSCREEN: None.

    I've search here & elsewhere and I see a lot of threads about MoUsoCoreWorker.exe waking PC's from sleep. My problem though is MoUsoCoreWorker.exe prevents my PC from going to sleep.

    I'm aware that it has something to do with Windows Update, so it's I'm guessing MoUsoCoreWorker.exe is not something I can or should delete or anything similar.

    If I reboot my PC then immediately after the reboot MoUsoCoreWorker.exe is NOT listed when I run the powercfg /requests cmd. However, 30 mins or so later it is listed. I suspect MoUsoCoreWorker.exe is added when Windows does a scan for updates but I'm not 100% certain of that.

    According to the Window Update page, there are NO updates and Windows last checked: Today, 11:55am.

    Which is a X mins after I rebooted the PC.

    I'm also aware that I can "override" the request by doing:

    powercfg /requestsoverride process MoUsoCoreWorker.exe

    I presume that Widows adds MoUsoCoreWorker.exe to the EXECUTION category for a reason but some bug means that Windows is not removing it. I don't know what the impact would be if I were to override the request.

    So to my questions:

    * Is this a known bug in Windows (see vers & build # above)? If so, has MS released a fix? If so, what is the KB number and where can I download the fix?

    * If there is currently no fix available, what can I do resolve the issue? Would running the override cmd above be a suitable work-around? If not, what else can I do?

    Many Thanks in advance
    BazzaG...
      My Computer


  2. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #2

    Hello and welcome to tenforums @BazzaG ,
    Yes, it's related to Windows Updates. Check Windows Update for any pending updates that need to be installed. Does it show anything?
      My Computer


  3. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #3

    Please run two commands
    Code:
    sfc /scannow 
    and 
    dism /online /Cleanup-Image /ScanHealth
    when you have a chance. Post the resulting output.
      My Computer


  4. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #4

    From Windows Update, manually check for updates and see if it downloads and installs anything.

    See this related M$ thread
    https://answers.microsoft.com/en-us/...fa02c4d?auth=1
      My Computer


  5. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #5

    Reset Windows Update in Windows 10 try this also. That's it for now
      My Computer


  6. Posts : 28
    Win10 Pro 64Bit
    Thread Starter
       #6

    Thanks to all replies.

    Re: Check Windows Update for any pending updates that need to be installed. Does it show anything?

    As indicated in my initial post ... NO updates, and that includes optional updates.

    From Windows Update, manually check for updates and see if it downloads and installs anything.

    None

    See this related M$ thread

    I had already looked at most of that loooong thread

    Please run two commands

    Will do so shortly.

    Reset Windows Update in Windows 10. Try this also

    Reviewing, although it would be nice if doing didn't didn't delete my history.

    Thanks
      My Computer


  7. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #7

    Clearly stated that it won't clear your history on the tutorial page
      My Computer


  8. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #8

    I did have a similar scare where my PC wouldn't sleep for the same reason, but it turned out that it wasn't finished installing a Dot NET update. I think I just left it on for a while, then it finished, powercfg output was clear, and sleep resumed working again.
      My Computer


  9. Posts : 16,557
    Windows 10 Home x64 Version 22H2 Build 19045.3930
       #9

    BazzaG said:
    ... My problem though is MoUsoCoreWorker.exe prevents my PC from going to sleep ...
    Bazza,

    Try mngerhold's solution in post #13 of another thread

    Denis
      My Computer


  10. Posts : 21,421
    19044.1586 - 21H2 Pro x64
       #10

    BazzaG, the issue you're experiencing is not a known bug. It seems to very infrequently appear on some PCs. If it was a common bug, we'd see droves of people reporting it.

    Another option I use is to create a shortcut with the command line to sleep my PC immediately when I know I won't be using it for a while, then I will just click on the shortcut to make it sleep immediately.
      My Computer


 

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