I made a post yesterday to thank those involved, but for some reason it came back rejected. I unloaded/reloaded 2019 TT first in case of a mishap, but none occurred. It booted right up. The only issue was Apple (?) rejecting same, because it couldn't check for malware. As an afterthought, I tried to boot up the 2020 version, which had also been compromised, and it booted right up! Two of the Library commands had no info in them, if that is of any significance.
Again, many thanks for the assistance!
