Now you see it, now you don’t.
It worked, Roon started and I could play music for a while. But then I restored to the latest backup before this all started and I re-installed USB audio drivers for my Oppo 205 and Marantz SA-10. After rebooting I got the same problem again: Roon does not start.
Tomorrow I wil try to restore windows to a previous state and update from there again.
This sucks!!!