Won't launch after changing from DX12 Beta to DX11 [RESOLVED] (will delete in 24 hrs.)

then you are possbile more affected from

My recommendation: set a low fps limit in nvidia control center for a test-run ( e.g. max 30 fps ). Also, second test is to disable HAGS in case it is enabled. But there are also other hints in that topic.

You can also check the windows event log, whether you find exact error message.