All about the MoUSO core worker process - How does it work? from hunerypeterson's blog

The MoUSO core worker process eventually turns your computer on even if your system is into sleep mode. When a new Window Update is installed, this process often starts up automatically in the back.

This process detects errors while the system update is being downloaded and turns on the computer to clear the issues. Further, Microsoft only added the MoUSO core worker process since it created the Windows version 10. Whenever you install any windows update or check for any updates, you can see this process in task manager.

Abbreviated as Update Session Orchestrator, it is mainly used to manage windows update sessions. Moreover, it resolves all the errors or issues that arise during the windows updation. It keeps Microsoft Windows secure from any of the threats emerging during the update process. The MoUSO core worker process runs behind while the windows update is going on. Some executable files such as USOCoreWorker.exe, USOapi.dll, USOClient.exe, USOsvc.dll, USOcoreps.dll, etc., along with the MoUSO process; these files use the Dynamic link library.

Perform the below mentioned steps to find out the MoUSO process:

1. Click CTRL + Alt + Delete key.
2. Click on Task Manager.
3. Under task manager, you will find Background processes.
4. Here, you will find the MoUSO core worker process running.

This process is a very important part of the system as it helps the system scan all the updates running behind. Not only it detects issues, it also examines the updation going on even in the sleep mode. For this reason, the computer wakes up when this process starts its work.

Moreover, if any of the system updates is pending, it will utilize the system assets to install the windows updates.

1. First of all, make sure that there are no remaining windows updates.
2. Secondly, disable the sleep mode feature.
1. Click on Windows key Control Panel.
2. Search and go to Power Options.
3. Click on Choose a power plan Change Plan Settings.
4. Increase the sleep mode time or set it to Never.
3. Thirdly, disable the UOS service:
1. Click Windows + R.
2. Type the text 'services.msc' and click Enter.
3. Find and then double-click Update Orchestrator Service.
4. Choose the Startup type Disabled.
5. Click Apply OK.

This action will end all the automatic updates, and it is not recommended. Also, the MoUSO core worker process is entirely safe. Although it consumes a load of memory, it helps you keep your system free from any errors arising while a system update.

The following are the reasons why this process takes a lot of memory.

1. If there are any updates in a queue, it will take more memory than regular updates.
2. Issues that arise in the updation process can result in taking more memory by the USO process.
3. The last reason is if any hazardous softwares are there in your computer system, it may take up extra space.

In conclusion, the USO process is not harmful; in fact, it helps you to keep your computer safe from any unknown threats during a windows update.