Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to WSUS.
On Client computer Go to Registry HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate -> Find Target Group -> export it -> Then Delete it.
On WSUS server please follow below steps.
- Open an elevated Command Prompt window, and then go to the following location:
%programfiles%\Update Services\WebServices\ClientWebService
- Type the following commands, and press Enter after each command:
takeown /f web.config
icacls web.config /grant administrator:(F)
notepad.exe web.config
- Locate the following line in web.config:
<add key="maxInstalledPrerequisites" value="400"/>
- Change the value from 400 to 800.
- Reboot WSUS server.
Reference :
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