Hi @Popp, Jochen (DI FA TI AIT)
The there is a separate sub key under "Microsoft" called “.NET”, instead of "Microsoft.NET". Check this screenshot:
You can add the .NET, 6.0 key and the AllowAUOnServerOS key by yourself. Or create a .reg file with the following command:
Refer to this article: .NET Automatic Updates for Server Operating Systems.
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.