@TerryRed solved.
A simple switch of the display language to "US English" in Windows and the problem is solved. The only thing that needs to be changed is the windows display language. All other things (keyboard ...) can be kept. After checking everything and this change did not create any new problems, I can recommend this solution.
(People who don't have a cab and need their PC in the home language can certainly switch the language temporarily via PuP with a small batch script. I have not tried this, since I have a cap-only PC).