Often the first step to resolve annoying performance issues on a PC is to terminate active background tasks in the Task Manager, isn’t it? Have you, like many others, recently noticed the discreet MoUSO Core Worker Process silently hogging disk space, CPU, and RAM? You see this is why the system has been showing signs of overwork lately. We will guide you on how to fix the high disk, CPU, and memory usage caused by the MoUSO Core Worker Process. Let’s free your system from this resource-hungry trouble!
How to Fix MoUSO Core Worker Process High Disk Usage
USO stands for Update Session Orchestrator, and MoUSO is a built-in Microsoft Unified Update Platform (UUP) component. MoUSO core worker Process is a service that handles, checks, and downloads updates for Microsoft Store apps.
When you access the Microsoft Store, this process silently springs into action, working behind the scenes. While it plays an important role in keeping the performance of the apps current, some users may encounter instances where the MoUSO Core Worker Process consumes high CPU or disk usage and ultimately can slow down your system.
Tip: Remove all external hardware devices one after another and check if it helps reduce the usage of system resources by MoUSO.
Quick Answer
To resolve the issue, install all pending Windows updates. If it does not help, restart the MoUSO Core Worker Process.
1. Open the Task Manager.
2. Right-click on MoUSO Core Worker Process and select End task.
3. Restart the PC.
What Causes MoUSO Core Worker Process to Take High Disk Usage?
Here are some of the reasons why the MoUSO Core Worker Process may be consuming a lot of system resources in the background:
- Pending Windows updates
- Corrupt update file
- Hardware Issues
- Malware
Now that we know the reason, here are some ways to fix the issue with the MoUSO Core Worker Process.
Method 1: Update Windows
Occasionally, outdated OS causes such technical glitches within the system that result in issues with the programs and processes. We suggest you install all pending Windows updates and check if this helps.
1. Press the Windows key + I to open Settings.
2. Move to the Windows Update tab and click on Check for updates at the top right corner.
3. If there are any updates available, click on the Download & Install all button.
4. Restart the PC to install the updates.
This should resolve the issue.
Method 2: Pause Windows Updates
Windows includes an option for users to pause updates, which temporarily suspends all running update processes. This feature prevents the MoUSO Core Worker Process from consuming resources in the background. Follow the steps below:
1. Open Settings and navigate to the Windows Update tab
2. Click on the drop-down arrow next to Pause Updates and choose your preferred duration from the menu as preferred.
Check if this solved the issue. If you want the updates to continue again, click on Resume updates at the top.
Also Read: What is the USO Core Worker Process or the usocoreworker.exe?
Method 3: Run Windows Update Troubleshooter
We already know that the high disk, CPU, and memory usage by MoUSO Core Worker Process issue can be caused due to update-related issues on the PC. Windows Update Troubleshooter automatically scans for and resolves any such problems that may prevent updates from installing correctly. Refer to our guide on How to Run Windows Update Troubleshooter on Windows 11.
Method 4: Verify Authenticity of MoUSO Process, then Scan
It is important to verify the authenticity of the MoUSO process to maintain the system’s security and integrity. It involves confirming its source to ensure that the executable file is from Microsoft and not a malicious or unauthorized component. Follow the steps:
1. Open Task Manager on the PC.
2. Right-click on MoUSO Core Worker Process and select Properties from the context menu.
3. Now in the General tab, select the path next to Location and copy it.
4. Open File Explorer, paste the path into the address bar and press Enter.
5. Right-click on the MoUSO Core Worker executable file and select Properties.
6. Move to the Details tab.
7. Confirm if the Copyright is mentioned as Microsoft Corporation. All rights reserved. If yes, let’s move to the methods.
It might be a Trojan installed in the PC if the Copyright claimed is not the same as mentioned above. In such a case, we suggest you scan and remove the malware from the PC.
Method 5: Restart MoUSO Process
Assuming it could be due to some technical glitches that the MoUSO Core Worker Process is having high disk usage, let’s just try out the very basic approach. Follow the steps:
1. Open the Task Manager.
2. Right-click on MoUSO Core Worker Process, followed by End task in the context menu.
3. Restart the PC.
Also Read: 26 Best Free Malware Removal Tools
Method 6: Disable Delivery Optimization
Delivery Optimization helps users get updates and apps more quickly from other PCs on your local network or over the internet to reduce load on Microsoft servers. However, the USO Core Worker Process already manages the update and installation process. Hence, Delivery Optimization can put more strain on system resources. Follow the steps to disable it:
1. Follow the path: Settings > Windows Update > Advanced options.
2. Scroll down and click on Delivery Optimization.
3. Togge off the Allow downloads from other PCs option.
Method 7: Restart Crucial Windows Services
Windows Services manages multiple system processes and tasks to ensure that the OS and installed applications operate smoothly. It is possible that the MoUSO Core Worker Process could be affected by bugs for which its disk usage is high. Hence, we can disable and restart the following processes to fix the issue.
Method 7.1: Restart Windows Update Service
Issues with the Windows Update service could be why the MoUSO Core Worker Process does not allow the PC to enter sleep mode. Follow the steps to fix it:
1. Press the Windows key + R together to open the Run dialog box.
2. Type services.msc in the text field and click on OK to launch Services.
3. Scroll down, right-click on Windows Update, and select Restart from the menu.
Also Read: How to Enable Hibernate Mode in Windows 11
Method 7.2: Restart Orchestrator Service
Orchestrator Service plays a key role in managing and orchestrating software deployments, updates, and system configurations. Restarting the same will allow it to load the process with minimum resources.
1. Press the Windows key + R to open the Run dialog box.
2. In the text field, type services.msc and press Enter.
3. Right-click on Update Orchestrator Service and select Restart from the menu.
Method 8: Reset Windows to Default Power Settings
Overusage of system resources such as disk, CPU, and memory that cause the MoUSO Core Worker Process to wake up your PC consistently can be fixed by adjusting the power settings.
1. Press the Windows key to open the Start menu.
2. Search for Windows PowerShell and click on Run as Administrator.
3. In the UAC prompt, click on Yes to confirm.
4. Enter the following command in the terminal and press Enter to execute it:
powercfg –restoredefaultschemes
5. Once the process is finished, Restart the PC and check if the issue is resolved.
Also Read: 16 Best Free Network Monitoring Software for Windows 10
Method 9: Disable Update Orchestrator Service
If none of the above methods helped resolve the error, lastly, you can disable the Update Orchestrator Service and check if it resolves the issue. However, do note that this may lead to problems with keeping the OS up-to-date and secure.
1. Press the Windows key + R to open the Run dialog box.
2. Typeservices.mscand press Enter.
3. Right-click on Update Orchestrator Service and select Properties from the menu.
4. In the General tab, choose Disabled for the Startup type.
5. Click on Apply and OK.
Is It Okay to Disable the MoUSO Core Worker Process?
In certain situations such as high disk usage, the MoUSO Core Worker Process is disabled for troubleshooting processes. Yes, it is generally okay to do so as it is not directly required for the OS to run.
However, it is not recommended to disable the Update Orchestrator Service, which is associated with the MoUSO Core Worker Process. Doing so will stop all Windows updates.
Recommended: How to Install Dev Home on Windows 11
That is it! We hope our guide helped you fix the MoUSO Core Worker Process high disk usage issue. If you have any queries or suggestions for us, do let us know in the comments box below. Stay connected to TechCult for solutions to such Windows-related issues.
