Is there any fix for MoUsoCoreWorker.exe preventing Windows 10 entering sleep?

Question

POWERCFG -requests shows that System32\MoUsoCoreWorker.exe is the reason the computer never sleeps.

This article notes that restarting the Windows update service can fix it temporarily. It does clear MoUsoCoreWorker.exe from the POWERCFG -requests report. But hours later, MoUsoCoreWorker.exe is running again, and the computer still won't sleep.

Is there any better approach?

Answer 1

According to the information supplied by the poster, it's most likely that Windows was waking up the computer at night in order to install new updates, as are the default settings of Windows Update.

Once all updates have been installed, the computer goes back to sleeping happily and doesn't wake up any more. Until the next time.

Finer control over Windows Update is found in Settings > Update & Security > Windows Update and in Power Options > Change plan settings > Change advanced power settings, under Sleep, Allow wake timers.

Answer 2

For me the Solution was:

powercfg /requestsoverride process "MoUSO Core Worker" execution
powercfg /requestsoverride process "USO Worker" execution

Answer 3

Just run this command in an elevated command prompt:

powercfg /requestsoverride process "\Device\HarddiskVolume3\Windows\System32\MoUsoCoreWorker.exe"

Note that the part in quotes needs to match the path from powercfg -requests

Answer 4

The only real long term solution seems to be making a task in taskschd to kill it every N minutes. Like

schtasks /Create /SC MINUTE /MO 15 /ST 23:00 /TN MoUso_kill /TR "'c:\utils\sint\pskill' '-nobanner MoUsoCoreWorker'"

The /MO 15 is just a precaution, normally /MO 60 should do but since MoUsoCoreWorker has been known to send system into reboot, safe is safe

pskill is from Sysinternals Utilities (also live page) and share \\live.sysinternals.com\tools )