RSAT tools not installing on windows 11. Error code = 0x800f0955

Question

For some reason some of my Active directory rsat tools have uninstalled. When i try to install it again via the " optional Features" page i get a " couldn't install " error. When i try to install via powershell i get an " Add-WindowsCapability failed. Error code = 0x800f0955" error.

i even tried installing other RSAT tools I don't need to see they would install and they did. for some reason it just wont install certain ones.

Things I've tried but did not work:

• installed via powershell
• installed via optional features
• Changed local group policy to allow optional features

Win 11 pro build: 21H2 build 22000.1165

Answer 1

i was able to solve the issue. i just redownloaded the RSAT tools from microsoft. Technically i shouldn't need to do this but it worked and now my active directory snapins are present.

MS Windows 10 RSAT tools

Answer 2

I managed to install RSAT in W11 by following the registry fix, remember to backup your registry before attempting this.
1.-If you have a corporate computer or domain joined, most probably is you have WSUS, this has to be not present for RSAT to install, make sure the user is admin of the W11 machine temporaly or wont show up in Additional features.
2.-Install RSAT KB from Microsoft page.
3.-Stop Windows Update Service
4.-Navigate your Regedit.exe - "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" , set UseWUServer key to 0.
5.-Start Windows Update Service
6.-Install now RSAT either using GUI or Powershell or CMD, will work.

Cant believe just yet this is the only way to get through , also, that new error message "couldn't install" Is the most frustrating thing I had ever seen. It does not helps at all! Hope Microsoft does changes that!

Cheers!