5 Ways to Fix MoUSO Core Worker Process High Disk Usage (2024)

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.

What is the MoUSO Core Worker Process? How to Fix

Do you have problems with any of the following processes: usocoreworker.exe, usoclient.exe, USO Core Worker Process, or MoUSO Core Worker Process in your Task Manager? This trackerror post explains what it is and how to resolve the problem with it.

A Microsoft process called MoUSOCoreWorker.exe assists the operating system in managing the installation of Windows updates. It is also referred to as the MoUSO Core Worker Process. In its name, “USO” stands for “Update Session Orchestrator,” which encapsulates its function rather nicely.

The MoUSO Core Worker Process can be the cause if your machine keeps waking up from sleep. Additionally, the method may result in excessive CPU or disk utilization. If left unchecked, this might cause your computer to run much slower and could lead to more serious problems down the road.

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.

Malware is the MoUSO Core Worker Process?

No, it’s secure. When Windows is installed on your device, a Microsoft program called the MoUSO Core Worker Process is installed as well. This indicates that the procedure cannot directly damage your system, so you don’t have to worry about getting rid of it.

However, if you allow the process run wild for a long time, it can have some negative impacts due to the possible rise in CPU or disc utilization. In severe circumstances, some users have claimed that it could damage your SSD drive.

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.

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.

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