Hi,
I have to say that fixing the tasks (HP printer in my circumstances) worked for me. This is a simpler "fix" if it works for you. You do have to do it twice, or at least I had to, to get that to work.
If that does not work for you then the new account solution should be your next "fix" to try.
Glad it worked for you guys.
I now have 20H2 installed and my machine is running with no problems.
Long may it continue. Thanks to all who participated. Hopefully this thread solved the issue for many.
Have a great festive season and stay safe.