MoUSO Core Worker Process: Everything You Need To Know

MoUSO Core Worker Process

Are you having problems with a process that appears in Task Manager as MoUSO Core Worker Process, such as usocoreworker.exe, usoclient.exe, or USO Core Worker Process?

The MoUSO Core Worker Process, also known as MoUSOCoreWorker.exe, is a Microsoft process that assists the operating system in managing Windows update installation. Its moniker, “USO,” stands for “Update Session Orchestrator,” which pretty well covers up what it does.

If your computer keeps waking up from sleep, the MoUSO Core Worker Process might be at fault. Furthermore, the method may cause significant CPU or disk utilization. This can substantially slow down your computer and, if not addressed, may lead to more severe problems in the future.

What Exactly is MoUSOCoreWorker.exe?

What Exactly is MoUSOCoreWorker.exe?

Windows updates are renowned for being less than ideal. With the Unified Update Platform, Microsoft aimed to enhance the update experience a few years after Windows 10 was introduced (UUP). The UUP was incorporated with Windows 11 from the beginning.

The Unified Update Platform is divided into layers, each handling a specific aspect of the update process. The new update platform includes the mousocoreworker.exe process.

MoUSOCoreWorker’s “USO” stands for “Update Session Orchestrator,” which is the component of the update process that coordinates the sequence in which updates are downloaded and installed. When everything is working correctly, mousocoreworker.exe should appear in Task Manager when Windows checks for updates and then disappear.

Is the MoUSO Core Worker Process Infected With Malware?

No, it’s not dangerous. The MoUSO Core Worker Process is a Microsoft-created software installed on your device with Windows. This implies that the procedure cannot directly affect your system, so you do not need to delete it.

However, due to the possible increased CPU or disk utilization, allowing the process to run uncontrolled for a lengthy period may have some negative consequences. Some users have complained that it can severely damage your SSD disk.

How to Resolve MoUSO Core Worker Process Excessive Disk/CPU Usage

How to Resolve MoUSO Core Worker Process Excessive Disk/CPU Usage?

If the MoUSO Core Worker Process is exhausting your resources, there are various things you can do. Although you cannot uninstall the process, you may investigate several issues causing it to consume your CPU, disk, or memory unnecessarily.

Method 1: Install All New updates

You should first attempt to install any pending and optional updates for your system.

  1. To open the Start menu, click the Windows symbol in the lower left corner of your screen. Select Settings or use the Windows + I keyboard shortcut.
  2. Select the Update and Security tile. This is where you can discover the majority of your Windows Update options and configure when you want to get updates.
  3. Keep the default Windows Update tab selected. Wait for Windows to discover available updates after selecting Check for updates. If any updates are shown, select the View all optional updates link to view and install them.
  4. When Windows detects a new update, select Install, and allow Windows to download and install any necessary updates.

Method 2: Execute the Windows Update troubleshooter

Windows 10 has a set of troubleshooting tools meant to help users address problems without the assistance of an IT expert. While not ideal, they can help diagnose problems with your system. To resolve any MoUSO Core Worker Process issues, run the Windows Update troubleshooter.

  1. You may access the search bar by clicking on the magnifying glass icon on your taskbar. You may also use the Windows + S keyboard shortcut to bring it up.
  2. In the search box, type Control Panel. When you see the results, click on them to open the app.
  3. Search for Troubleshoot in the top right input field, then click on the Troubleshooting heading from the search results.
  4. In the left-hand window, click the View All link. This will lead you to a new page with every available troubleshooter shown.
  5. Scroll to the bottom and look for the Windows Update troubleshooter. Wait for the troubleshooter to start in a new window after clicking on it once.
  6. To begin the Windows Update issue investigation, click Next. If the troubleshooter can identify a problem, they will attempt to resolve it. A detailed report is available at the end of the troubleshooting procedure.

Method 3: Turn off Delivery Optimization

  1. To open the Run utility, simultaneously press the Windows + R keys on your keyboard. Enter “regedit” without quotation marks and press the OK button.
  2. To go to the following Registry key, utilize the navigation pane on the left side of the window, or use the address bar and copy-paste the location:
  3. HKEY LOCAL MACHINE\SYSTEM\CurrentControlSet\Services\DoSvc
  4. Right-click on the Start value, and then pick Modify… from the context menu. A new window should open up.
  5. Change the Value data field from the current number to 4. Make sure the Base is set to Hexadecimal, and click the OK button.
  6. You must now restart your computer before proceeding with the following steps. Continue with the procedures below when your system has successfully rebooted.
  7. To open the Run utility, simultaneously press the Windows + R keys on your keyboard.
  8. Enter “services.msc” without quotation marks, then click OK. This will open the Services in a separate window.
  9. Scroll down the list of services until you find Delivery Optimization—select Properties from the context menu by right-clicking on it.
  10. Make sure that the Startup type is set to Disabled. If it isn’t, alter it by choosing it from the drop-down option.

Restart the Windows Update service

If your Windows PC won’t go to sleep and you’ve already verified the reason as the MoUSO Core Worker Process, restarting the Windows Update service should cure the problem.

  1. To open the Run utility, simultaneously press the Windows + R keys on your keyboard. Enter “services.msc” without quotation marks, then click OK. This will open the Services in a separate window.
  2. Scroll down the list of services until you find Windows Update. Select Refresh from the context menu when you right-click on it.


It’s crucial to be informed of the MoUSO Core Worker Process and how it operates to maintain a reliable system. The article provides troubleshooting methods for when your computer’s CPU, memory, or disk use surges due to this background operation.

Also read: Qualcomm Snapdragon 8 Gen 2, a New High-Performance Flagship Processor

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