Windows 10 has a built-in Sleep Mode feature that allows the system to enter and remain low-power when enabled. However, after installing a recently released optional update, originally scheduled for late August but delayed until early September for some reason, many users reported that the device was constantly waking up from sleep mode, and later discovered that the problem was caused by MoUso CoreWorker.exe.
MoUso CoreWorker.exe is a process that is relevant to Windows Update and can cause unnecessary wake-up after the optional update is installed. One user said on Feedback Hubs.
When I turn off my notebook, press the power button, or choose to sleep in the power menu, the screen doesn’t go to sleep, but shuts down directly. My laptop doesn’t go into sleep mode even when it’s left alone all night.
One way to solve this problem is to reschedule these updates and restarts through windows Update settings and prevent the update service from running at odd times. Once you’re done, you’ll need to restart your computer and you’ll be able to go to sleep mode.
If you can’t fix your sleep patterns by adjusting your update schedule, you can also try the following steps.
1. Turn on Windows Search.
2. Search for “Services.msc”
3. In the service window, look for Windows Update services.
4. Stop the Windows Update service.
5. Tap Windows Update and select Stop
6. Click the same entry again and select Start, and then select Restart.
7. Go to the Windows Update page, check for updates, install the patch to be updated, and restart the device.
It is worth noting that this is a temporary solution and there is no suitable solution. Once done, MoUsoCoreWorker.exe should no longer block your laptop or 2-in-1 sleep mode.