MoUSO Core Worker Process: What It Is and How to Fix?

There are a lot of operations that go place in the background to guarantee that a machine running Microsoft Windows remains functional. Most of the time, consumers are not made aware of these procedures. Because these programmes may begin to use more CPU and RAM resources in the future. Procedures such as the MoUSO process are among them.

There have been many reports of the following concerns with this procedure from users:

  • CPU consumption is really high.
  • Disk consumption is really high.
  • Memory consumption is really high.
  • Excessive use of the RAM

In the beginning, we will describe the procedure, and then we will verify its legitimacy. Following that, we’ll go through a few alternative options for turning it off.

What is the ‘MoUSO Core Worker Process’ File?

Windows process known as the ‘MoUSO Core Worker Process’ automatically launches in the background whenever Windows checks for updates. This technique was introduced by Microsoft with the release of Windows 10 version 1903. As a result, if you are running a Windows 10 version prior than 1903, you may not be able to locate it in the ‘Task Manager.’

When managing and installing new features and Windows updates on a machine, this procedure collaborates with the following executable and DLL files to achieve success:

  • USOCoreWorker.exe
  • USOClient.exe
  • USOapi.dll
  • USOcoreps.dll
  • USOsvc.dll

This procedure is required because it ensures that the system is secured against threats by regularly upgrading it. Because it cannot locate the update status, it continuously wakes up your system from sleep, and you will often discover your system’s fan running or LED lights flashing because it cannot locate the update status.

If you notice that this process is demanding an excessive amount of system resources, or if you just do not want your computer to wake up, you should deactivate it immediately.

Is it Safe?

The MoUSO (Update Session Orchestrator) Core Worker Process utilises excessive system resources in the same way as the ‘Waasmedic Agent.exe’ process consumes excessive system resources. Aside from that, malware authors purposefully call their processes the same as Windows processes in order to infect Windows PCs with malware or Trojans. As a result, several individuals have expressed concern regarding the legitimacy of this material. We propose that you double-check the legitimacy of this procedure.

How to Disable or Fix it?

The most typical cause of this problem is a lack of current updates. In the case that you are using Windows 10 version 1809 or later, we suggest that you apply the KB4568831 Windows 10 update since it has been shown to address this problem for others.

  • First of all, go to the ‘Start menu’ and click on the ‘Settings’ option.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Then, click on the ‘Update & Security’ option.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Now, if you are using Windows 10 version 1809 or later, click on the ‘Check for updates‘ option to allow Windows to download the ‘KB4568831‘ update.
MoUSO Core Worker Process: What It Is and How to Fix?

If your system does not automatically download and install the ‘KB4568831‘ update, we suggest that you use the ‘Microsoft Update Catalog’ to manually download and install the update on your computer.

Once the upgrading procedure is complete, you may determine whether or not this solution was successful for you.

Disabling Delivery Optimization

In this method, we will utilise the ‘Registry Editor’ to stop the ‘Delivery Optimization’ feature in Windows 10 since, by default, Windows 10 will not enable you to disable the feature. Although disabling it will not prevent updates from occurring, it will minimise resource use since this technique has been beneficial to others.

Note: As part of the Windows 10 Anniversary Update, Microsoft introduced the concept of “Delivery Optimization.” Instead than downloading updates directly from Microsoft, this capability enables users to obtain them from a nearby system that has already downloaded them. It decreases the available bandwidth, but it also introduces a danger to the system.

  • First and foremost, determine whether or not all of the updates have been successfully loaded on your machine. Following the ‘first two steps of Solution 1’, choose the ‘Update & Security‘ option from the context menu.
  • Afterwards, if your system displays the following message, it indicates that your system has been updated to the latest version.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Now, open ‘Registry Editor’ as ‘Administrator.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Next, after selecting ‘Computer,’ copy and paste the following path into the address bar of “Registry Editor,” which will take you to the “DoSvc” folder.
MoUSO Core Worker Process: What It Is and How to Fix?
  • In order to make this modification, double-click on the item labelled “Start” and modify itsValue data:” to “4
  • Then click on the ‘OK‘ button to close out of the ‘Registry Editor‘ window.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Now, restart your system.
MoUSO Core Worker Process: What It Is and How to Fix?
  • As soon as the system has been successfully restarted, go to the ‘Start menu‘ and choose the ‘Services‘ option.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Now, scroll down until you locate ‘Delivery Optimization,’ right-click on it, and then choose the ‘Properties‘ option from the context menu.
MoUSO Core Worker Process: What It Is and How to Fix?
  • You can see in the following picture that Windows has successfully disabled the ‘Delivery Optimization’ service.
MoUSO Core Worker Process: What It Is and How to Fix?

Once that is done, you may check to see whether or not the resource usage of the “MoUSO Core Worker Process” has returned to normal. If you answered yes, then congratulations. However, if this solution does not satisfy your requirements or does not resolve your issue, go on to the next one.

Please keep in mind that if your system upgrades, you will have to go through the same process again.

Preventing ‘MoUSO Core Worker Process’ from Waking Your System

In addition, as previously said, this operation continually wakes up your PC, and you will often see the flashing LED light or the fan of your system operating. We shall disregard the ‘wake up’ requests made by the ‘MoUSO Core Worker Process’ using Windows PowerShell in order to avoid this situation.

  • In order to begin, log into ‘Windows PowerShell‘ as a ‘Administrator.’
MoUSO Core Worker Process: What It Is and How to Fix?
  • Then, paste the following command in ‘Windows PowerShell’ and hit the ‘Enter’ key to execute this command.
MoUSO Core Worker Process: What It Is and How to Fix?

This operation will no longer wake up your machine in order to check for updates. Check to see whether the system wake-up problem has been fixed as a result of this solution. If you answered yes, then congratulations. If it doesn’t work, try the next option.

Restarting ‘Windows Update’ Services

Restarting the ‘Windows Update’ service will resolve the problem if your machine running Windows 10 does not go to sleep and you have previously determined the root cause of the problem using the ‘powercfg /requests’ command, according to Microsoft.

  • In order to begin, go to the Start menu and choose “Services,” as described in “step number 9 of Solution # 2.” After that, click on “Services” from the drop-down menu.
  • After that, locate the ‘Windows Update‘ service by scrolling down the page.
  • Right-click on the ‘Windows Update’ service and choose the ‘Restart‘ option from the context menu. If the ‘Windows Update’ service has been terminated, this procedure will resume it.
MoUSO Core Worker Process: What It Is and How to Fix?
  • Next, restart your system by following the instructions in’step number 3 of Solution # 4′.

Remember to check whether you have any pending updates before proceeding, since after restarting the ‘Windows Update’ service, Windows will display all of the outstanding updates to be installed. As a result, install all of the pending ones.

Check to see whether this remedy has proven to be beneficial for you or not. If you answered yes, then congratulations. If it doesn’t work, try the next option.

Video Guide

What does MoUSO core worker process do?

Windows update management is made easier by the MoUSO Core Worker Process, which is also known as MoUSOCoreWorker.exe. The phrase “Update Session Orchestrator” (abbreviated “USO”) in its name refers to exactly what it accomplishes.

Can I stop USO core worker process?

You may deactivate the USOCoreWorker.exe process if it is causing significant CPU utilisation or overheating. Using the Services app, you may do this task. In the Run box, type services and hit Enter.

Is CTF Loader a virus?

What is CTF Loader? Not at all. This is a legal Windows file, and there is no trace of malware or infection connected to it. Safe even though it’s a programme that runs as an executable file Although malware with identical names has been discovered, it is important to note that threat actors do use this technique.

Wrapping Up

A Windows process known as ‘MoUSO Core Worker Process windows 10’ is required by Windows in order to maintain the system secure against the ever-growing threats to the system. As a result, we suggest that you remove it only if it is a virus.

Bryan V. Root
Bryan V. Root
Articles: 460

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