In this article, we’ll look at the MoUSO Core Worker process to see what it is and how to fix any issues it may cause. To function as we perceive it, Windows uses hundreds, if not thousands, of background processes. These processes, on the whole, remain out of the way and do their job. They do, however, have the ability to steal the show from time to time.
It could be anything as simple as your PC waking up from sleep for no apparent reason, or it could be something more serious.
What is the MoUSOCoreWorker process?
The MoUSO Core Worker.exe process, also known as the Mo USO Core Worker program, is a Windows process that monitors and updates Windows. It’s a substitute software for wuauclt.exe that runs in the background and checks for updates.
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Because it’s a new program, it can occasionally cause Windows Defender or other third-party antivirus software on your PC to wake up from sleep. When checking for Windows updates, the USO stands for Update Session Orchestrator and can be found in the task manager.
How to fix problems caused by the process?
If the process is causing you trouble, there are a few things you may do to get out of it.
Run the Troubleshooter for Windows Updates.
Windows 10 includes a number of built-in troubleshooters that may help you fix almost any problem on your computer, including Windows Update.
Step 1: To enter Windows settings, press Windows Key + I and select Update & Security.
Step 2: Navigate to the Troubleshooting section.
Step 3: Select Additional Troubleshooters from the drop-down menu.
Step 4: Run the Windows Update troubleshooter by clicking on it and letting it do its thing.
Disable the USO Core service
Although we strongly advise against it, you can turn off the USO process entirely to avoid any problems.
Step 1: To launch the Run prompt, press Windows Key + R. Enter services.msc in the search box.
Step 2: Right-click the Update Orchestrator Service and select Stop.
Now restart your computer, and everything should be good.
Make some registry changes
By following these instructions, you can hardcode the service to prevent it from resuming while users are signed in.
Step 1: To launch the Run prompt, press the Windows key + R. Hit enter after typing Regedit.
Step 2: Navigate to the following directory.
Step 3: Find the NoAutoRebootWithLoggedOnUser key, double-click it and change the Value to 1.
Restart your PC, and it should work fine.
Restart the Windows Update Service
By following these instructions, you can hardcode the service to prevent it from resuming while users are signed in.
Step 1: To launch the Run prompt, press Windows key + R. Hit enter after typing regedit.
Step 2: Find the Windows Update service. Right-click it and select Stop.
Step 3: Return to the Services Console and restart the Windows Update service in step 2.
Restart your computer, and everything should be OK.
Reset Windows Update modules
To get Windows Update modules to work properly, you may also try totally resetting them.
Step 1: Open the Quick Access menu by pressing Windows Key + X and selecting Command Prompt (Admin).
Step 2: In the prompt, type the following command and hit Enter.
net stop wuauserv cd %systemroot% ren SoftwareDistribution SoftwareDistribution.old net start wuauserv net stop bits net start bits net stop cryptsvc cd %systemroot%\system32 ren catroot2 catroot2.old net start cryptsvc regsvr32 Softpub.dll /s regsvr32 Wintrust.dll /s regsvr32 Initpki.dll /s regsvr32 Mssip32.dll /s
