Hi Dave,
and thank you for your reply.
I don't want to have active hours. I want my computer to restart when I am restarting it and no other time. I definitely don't want my laptop to restart in the middle of the night.
The system could show me a message that it's my own risk if I am only later restarting, but forcing a restart on me is just not acceptable and it can ruin my work. There is no other product that does this.
I did write here to the Community forums, because Microsoft's support is impossible to even get to, and they will likely not tell me any 'tricks' that would allow me to overrule what's built in to Windows. But the community of other users might be able to help, I hope.