5 Ways to Fix MoUSO Core Worker Process High Disk Usage

Fix MoUSO Core Worker Process High Disk Usage: The Windows service MoUSO Core Worker Process High Disk (MoUsoCoreWorker.exe) handles system changes. Some users have noticed that the MoUSO Core Worker Process uses a lot of memory (RAM) and makes their PCs run slower. This guide will explain how to solve this problem.

Table of Contents

What is the MoUSO Core Worker Process?

The Update Session Orchestrator (USO) that handles update sessions is the MoUSO Core Worker Process High Disk. It decides which changes must be put first and which can be installed later. Handles the update session and fixes problems that can stop Windows from updating. It also keeps Windows safe from possible threats when it updates.

In Windows 10 (Version 1903), wuauclt.exe (Windows Update AutoUpdate Client) was changed to MoUsoCoreWorker.exe in September 2023. Depending on how your power is set up, it will show up as either MoUsoCoreWorker.exe or USOCoreWorker.exe.

After Microsoft changed wuauclt.exe, some antivirus programs began to see MoUsoCoreWorker.exe as malware, even though it is not. MoUsoCoreWorker.exe is a part of Windows 10 and Windows 11.

What Causes MoUSO Core Worker Process High Memory/Disk/CPU Usage?

What’s Going On? MoUSO Core Worker is set up to run in the background and does not affect other tasks the user is working on. It takes 8 to 9 MB of memory most of the time. But Windows changes that don’t download or install correctly can cause the MoUSO Core Worker Process to use a lot of memory. In some situations, it may also use a lot of CPU and disk space.

Our study has shown that MoUSO Core Worker uses a lot of memory, CPU, and disk space because of the following problems.

MoUsoCoreWorker.exe is an old process. The process might be outdated but should be fixed by getting the latest Windows patches.
The changes that were due have been stopped.
Something is wrong with the Windows update.

Fix 1. Run the Windows Update Troubleshooter

MoUSO Core Worker Process uses a lot of memory because of a problem with an update. To fix this, run the Windows Update Troubleshooter. The Windows Update Troubleshooter is a tool to fix Windows update problems.

Right-click the Start button and then click Settings.

Scroll down to the bottom of the System panel and click Troubleshoot.
Choose Other ways to fix the problem.

Run the troubleshooter for Windows Update.
Use the suggested fixes and then restart your computer.

Fix 2. Pause Windows Updates

Stopping Windows updates will stop any updates that can’t finish loading and remove them. Windows Update can be stopped or started again so that the changes can be redownloaded and installed properly.

Right-click the Start button and then click Settings.
Choose the panel for Windows Update.

Open the Pause updates window and choose “Pause for 5 weeks” under “More options.”
Click Put updates on hold for later.

Fix 3. Install the Latest Windows Updates

Since pending updates can make MoUsoCoreWorker.exe use a lot of memory, CPU, and disk space, you should run all of them.

Right-click the Start button & then click Settings.
Choose the panel for Windows Update.
Click the Updates button.
Click Install now if Windows has already checked for changes.
If asked, click Restart now.

Fix 4. Disable Delivery Optimization

With Delivery Optimization, Windows can get changes not from the Windows Update server but from a computer on the same network.

But before you use this method, you should run all of the latest Windows patches.

To open Run, hold down the Windows+R key
Type regedit into the Run box and then click OK

In the Windows Registry Editor, go to the DoSvc key and click on it

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DoSvc

Right-click the Start D-WORD key in the right pane and click Modify.
In the Value data line, type 4 and then click OK.
Close the Windows Registry Editor and turn on your computer again.

Fix 5. Restart or Disable the Update Orchestrator Service

If nothing else works, you can try restarting the Update Orchestrator Service. That will stop the process and start it again using a more acceptable amount of system memory.

For the MoUSO Core Worker Process to work, the Update Orchestrator Service must be running. If restarting doesn’t solve the problem, you can turn off the Update Orchestrator Service.

To open Run, hold down the Windows+R key.
Type services.msc into the Run box and click OK.
Scroll down in the Services window and look for Update Orchestrator Service.
Right-click the Update Orchestrator Service and click “Restart.”
If that doesn’t fix the problem, right-click Update Orchestrator Service and click Properties.
Open the menu for Startup type and choose “Disabled.”
In the Service state area, click Stop.
Click “Apply,” then “OK.”
Close the window for the Services.

FAQs with (MoUSO Core Worker Process High Disk Usage)

Q1. How do I fix my MoUSO core worker process?

Run the troubleshooter for Windows Update. MoUSO Core Worker Process uses a lot of memory because of a problem with an update. To fix this, run the Windows Update Troubleshooter. The Windows Update Troubleshooter is a tool to fix Windows update problems.

Q2. Can I end the MoUSO core worker process?

Right-click the “Start” button in Windows and choose “Task Manager.” Right-click the MoUSO Core Worker Process and click End job.

Q3. What is the MoUSO core worker?

The MoUSO Core Worker Process (MoUsoCoreWorker.exe) is a Windows process that ensures patches are downloaded and installed correctly. In other words, it helps Windows decide which update will be launched first.

Q4. How do I fix 100 RAM usage?

Close any running programs or applications that you don’t need.
Stop programs from starting up.
Defragment the hard drive and set it up so that it works best.
Fix Error in the Disk File System.
Boost your virtual memory.
Turn off the service Superfetch.
Registry Hack is set.

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Conclusion

MoUSO Core Worker Process High Disk Usage is not a big deal, and it is very easy to fix. By following the given instructions, you can fix t, the error. Hope you have solved the MoUSO core worker process high disk usage issue and you are running your computer regularly and not facing any problems.

If I’ve missed anything or have any suggestions, feel free to drop us a line and don’t forget to give us a big thumbs up on Telegram, Facebook and Instagram.

Good Luck_

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