BCD is missing and can't be rebuilt?
BCD is missing and can't be rebuilt?
Attempt to start in safe mode.
Press F8 and then select Safe Mode.
The first time I wasn't using Safe Mode, I managed to start normally without any issues, but later I turned it off to investigate. When I rebooted again, a short 30-second Automatic Repairs screen appeared on the black startup screen. After switching back on, I was in RE and had to choose Vol 3 to restart, which worked without further problems.
It looks like the usual situation is now clear.
Thank you for your message!
I noticed the prompt to "Select an OS" was easy to disable.
Appreciate your understanding!