My sources say Microsoft is in the process of shipping a fix, but no ETA. In the meantime, the absence of any communication from Windows engineering is notable.
Mouso core worker process
My computer (Windows 10, 64-bit Build 19041) is constantly waking up from sleep and then going back to sleep for a short time only to repeat the cycle. I ran sleep diagnostics on the Windows PowerShell as administrator i.e. powercfg /systemsleepdiagnostics. The report from yesterday (5/31/2020) indicates that my computer awoke from sleep 50-55 times during the course of the day until at about 8:00 p.m., I decided that it was better to fully shut down the computer rather than have these continued cycles. The common thread in all these awakenings from sleep is MoUSO Core Worker Process (MoUsoCoreWorker.exe).
- Power Requests
- \Device\HarddiskVolume5\Windows\System32\MoUsoCoreWorker.exe | START TIME | DURATION | TYPE | TOKEN | | --- | --- | --- | --- | | 2020-05-31T18:18:53 | 0:00:01 | Execution | 0xffff8389192ab2e0 |
This executable is a Microsoft programming element.
Why is this happening and what can I do to eliminate this totally annoying phenomena?
Windows for home | Windows 10 | Sleep and Power on, off
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
317 answers
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Anonymous
2020-10-02T20:51:29+00:00 -
Anonymous
2020-10-03T07:21:29+00:00 I am having the same problem, computer will not go to sleep.
I have tried solving this and cant see Ms UsoCoreWorker in the taks manager or in the CMD :
C:\WINDOWS\system32>powercfg /requests
DISPLAY:
None.
SYSTEM:
None.
AWAYMODE:
None.
EXECUTION:
None.
PERFBOOST:
None.
ACTIVELOCKSCREEN:
None.
Computer still will just not sleep, SO frustrating ...
r
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Anonymous
2020-10-03T07:47:53+00:00 If you are seeing this problem, the best solution (until an update is provided) is to restart the Windows Update service:
Start > Run
services.msc
(Alternatively: Windows key for search, "Services", run the Services app)
Scroll down to (or type) "Windows Update"
Right-click and Restart
Your computer will now be able to sleep for a while, at least until Windows Update starts pending on the next flight.
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Anonymous
2020-10-03T08:41:44+00:00 Thanks, I tried that and there is not change, :-[
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Anonymous
2020-10-03T13:39:10+00:00 Hi,
My (currently working but who knows...) solution is to create a task (.cmd file) that is executed at each logon (using the Task Scheduler) and that contains these simple lines :
@ECHO OFF
powercfg -requestsoverride PROCESS "MoUsoCoreWorker.exe" SYSTEM
To make things easier and cleaner, this .cmd file can be converted to an .exe file using the Bat to Exe Converter utility (https://www.majorgeeks.com/files/details/bat_to_exe_converter.html). This will allow to launch the command transparently.
Anyway, this is an irritating bug because no one can say when MoUsoCoreWorker.exe will re-appear and post a new request. It's obviously related to recently installed or pending Windows updates but I can't find any pattern. MoUsoCoreWorker.exe is launched each time you check Windows Update in the system settings but it stay there afterwards (not necessarily posting a no-sleep request).
So, Helloooooooooo Microsooooooooft!, time to wake up and fix this.