@kaki "Another involves confusing Windows by inputting an email address that has been used too many times. The go-to email for this method is "[email protected]" which you can add on the "Let's add your Microsoft account" screen. Type a random password and hit the "Sign in" button. Windows may respond with an "Oops" error and give you a "Next" prompt. From here you can create a local account and proceed as normal."

https://www.howtogeek.com/836157/how-to-use-windows-11-with-a-local-account/

Das hat bei mir letztens geklappt.