Mouso core worker process

Happy New Year!

I had a false alarm with the PC not sleeping but as on this edit (Jan. 10) computers are still sleeping.  Is it possible it is fixed?

In case you haven't noticed, MoUsoCoreWorker.exe is back preventing your computer from sleeping.  Again. 

Actually, it's not, this time. My computer, slept and resumed from sleep correctly for about two months and then suddenly stopped this week. It would shut down most of the way and then pop back to full "on." To my surprise, powercfg /requests showed nothing. Update history showed nothing -- no failed updates during the 4.5-month life of the machine.

However, I remembered a few contributors to this forum mentioning that they'd solved their problem by installing an optional update. I looked. There were three, including one related to Intel Bluetooth, one relating to Intel WiFi, and one relating to the AMD chipset. I checked all three and let it do it's thing. When it finished, only one had actually been installed, the Intel-WiFi update. The other two remained in the list of uninstalled optional updates, but that one WiFi update was all it took to get the computer sleeping perfectly again.

So, even if MoUsoCoreWorker.exe doesn't show up in powercfg troubleshooting, the problem may still have something to do with MS Update. I don't think the update service, itself, was the culprit, but there was an optional update that was needed. Are all driver updates listed as "optional?"

In case you haven't noticed, MoUsoCoreWorker.exe is back preventing your computer from sleeping.  Again. 

Actually, it's not, this time. My computer, slept and resumed from sleep correctly for about two months and then suddenly stopped this week. It would shut down most of the way and then pop back to full "on." To my surprise, powercfg /requests showed nothing. Update history showed nothing -- no failed updates during the 4.5-month life of the machine.

However, I remembered a few contributors to this forum mentioning that they'd solved their problem by installing an optional update. I looked. There were three, including one related to Intel Bluetooth, one relating to Intel WiFi, and one relating to the AMD chipset. I checked all three and let it do it's thing. When it finished, only one had actually been installed, the Intel-WiFi update. The other two remained in the list of uninstalled optional updates, but that one WiFi update was all it took to get the computer sleeping perfectly again.

So, even if MoUsoCoreWorker.exe doesn't show up in powercfg troubleshooting, the problem may still have something to do with MS Update. I don't think the update service, itself, was the culprit, but there was an optional update that was needed. Are all driver updates listed as "optional?"

The same here, my computer, has gone to sleep correctly for about two months since the fix I mentioned (see messages 10th Nov / 4th Dec). Then over Christmas stopped sleeping again with nothing showing in powercfg /requests. Found a couple of optional driver updates and installed these 30th Dec and PC happily sleeping again.

It clearly is broken though as should not need user intervention.

Just to feedback my PC has now stopped sleeping again and now sometimes even the display doesn't turn off. It does occasionally sleep but it is very hit and miss. So as you predictedbru20 I was only able to fix the problem temporarily.

Anyway I can confirm:

• Problem started early November 2020
• No new software was installed
• Nvidia graphic card drivers have been rolled back etc and made no difference
• Firefox has updated several times and made no difference
• Windows 10 updated to 20H2 and made no difference
• MoUsoCoreWorker.exe does not appear in powercfg /requests
• I have no outstanding windows updates at all (i.e no optional updates or optional driver updates)
• I did have to replace the PSU which failed to a slightly older PSU around the time the problem started.
• All other hardware remained the same

When I get a chance I will change to a brand new PSU just in case that might be causing the issue.

In the meantime I have applied a fix to at least force the PC to sleep overnight, following advice on this web site:

https://www.addictivetips.com/windows-tips/schedule-sleep-on-windows-10/

So occasionally the PC does sleep ok and if not then the fix ensures it does overnight, in my case scheduled for late evening.

• I did have to replace the PSU which failed to a slightly older PSU around the time the problem started.
• All other hardware remained the same

When I get a chance I will change to a brand new PSU just in case that might be causing the issue.

I remember my main pc had sleep problems too a few years ago and after several months it started to malfunction on booting too.

I remember my main pc had sleep problems too a few years ago and after several months it started to malfunction on booting too.

Sometimes it did, sometimes not.

I decided to open the pc up to check on things, all seemed ok, i got a psu out my second pc, connected it in main pc and all problems were solved, even the sleep issues.

So Kalaglow i would say you have a big chance of fixing it with replacing your psu.