Tips & Tricks Windows

What is USO Core Worker Process – How to Fix it

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Written by Kelly Houstan

A lot of Windows 10 users, using version 1903 and above, actually came up along with queries about some usocoreworker.exe or the USO core worker process. Users have found out about this process whenever inspecting in the Task Manager window. Because it was actually something new and unheard of, it left users along with lots of questions. Some thought of it as a malware or virus, however, a few concluded that it is a new system process. Either way, it is actually better to get your theory wholly confirmed as well as denied. Just read this article to know all about What is USO Core Worker Process is – How to Fix it. Let’s begin!

What is USO Core Worker Process – How to Fix it?

First of all, you have to know the full form of USO. It actually stands for Update Session Orchestrator. The usocoreworker.exe is basically a new Update Agent via Windows that works as a coordinator in order to manage the update sessions. You guys must be knowing that .exe is an extension for the executable files. Microsoft’s Windows Operating System basically owns the USO process. It is basically a process in order to replace the older Windows Update agent.

The USO process works in phases, or instead, we can call them stages:

  • The first phase is actually the Scan phase, where it basically scans for the available and required updates.
  • Well, the second phase is the Download phase. The USO process in this phase downloads the updates that basically came into view after the scan.
  • The third phase is actually the Install phase. The downloaded updates are installing at this stage of the USO process as well.
  • The fourth and the last phase is just to Commit. At this stage, the system commits all the changes caused via installing the updates.

Before this USO was introduced, Windows actually inculcated wuauclt.exe, and the detect now command. That was basically to schedule updates on the older versions. However, with Windows 10 1903, this command was basically discarded. The traditional settings were moved from the control panel to the System Settings in this update as well. The usoclient.exe also has replaced the wuauclt.exe. From and after 1903, the wuauclt has been removed, and you guys can no longer use this command.

Windows now use other tools in order to scan for updates and install them, such as usoclient.exe, usocoreworker.exe, usopi.dll, usocoreps.dll, and also usosvc.dll. These basically processes are not only used for scans and installation, however, also whenever Windows is about to add new features as well.


Microsoft released these tools without even any instruction manual and document as well. These were released along with just a note that – ‘These commands are not really valid outside the Windows Operating System.’ This means that no one can really access the use of the client or the USO Core Worker Process outside the operating system directly.

However, there is no meaning in going too deep over this topic. In short, we can also understand the USO Core Worker Process (usocoreworker.exe) as a Windows system process. That is related to the administration and supervision of Windows update scanning and also installations. This process also works whenever new features are also in the Operating System. It hardly uses any of your system memory and also never bothers you along with any notification as well as a pop-up. It infrequently causes any issue. So, you guys can easily afford in order to ignore it and let this process do the job without even ever bothering you.

USO process on Windows 10 | USO Core Worker Process

  • First of all, you have to open the Task Manager (Ctrl + Shift + Esc).
  • Then look for USO Core Worker Process. You guys can also check its location on your PC.
  • Right-tap on the USO Core Worker Process and then choose Properties. You can also tap on Open File Location. This will basically open up the folder directly.

USO Core Worker Process

You guys can look for USO in the Task Scheduler too.

  • Tap on Windows key + R and then type taskschd.msc and click on Enter.
  • Now navigate to the following folder:
    Task Scheduler Library > Microsoft > Windows > UpdateOrchestrator
  • You guys will find the USO process that is under the UpdateOrchestrator folder.
  • This also explains that USO is legit and we use it via the Windows operating system itself.

So, the myths that it is malware, as well as a system virus, have busted. The USO core worker process is an important Windows feature and we use it via the operating system itself. Although the process it actually runs is hardly ever visible.


However, let us give you a word of precaution: If you guys find a USO process as well as any USO.exe file outside the address C:\Windows\System32. It would be really better if you remove that specific file or process. Certain malware disguises itself as a USO process. Thus, it is good in order to check the location of USO files in your system. If you guys find any USO file outside the given folder, then just delete it immediately.

Although the USO process actually works and operates without even any human intervention. Windows provides the users the ability in order to look for updates and install them via using a USO agent. You guys can use commands on the command line in order to look for updates and install them. Some of the commands are also below, you can see:

C:\Windows\System32\UsoClient.exe RefreshSettings
C:\Windows\System32\UsoClient.exe RestartDevice
C:\Windows\System32\UsoClient.exe ResumeUpdate
C:\Windows\System32\UsoClient.exe StartDownload
C:\Windows\System32\UsoClient.exe StartScan
C:\Windows\System32\UsoClient.exe StartInstall
C:\Windows\System32\UsoClient.exe ScanInstallWait

Now that you guys have gone through the article and understood the USO process basics. We hope that you are free of all your doubts regarding USO tools as well.


Alright, That was all Folks! I hope you guys like this article and also find it helpful to you. Give us your feedback on it. Also if you guys have further queries and issues related to this article. Then let us know in the comments section below. We will get back to you shortly.

Have a Great Day!

Also See: How to Delete Multiple Messages on Messenger

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Kelly Houstan

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