Getting There

Thanks for the suggestions. sfc found corrupt files and repaired them. I looked at the log... gobbley gook. But nothing was fixed. The problems are mild. Maybe I'll live with them for a while

I (unwisely) decided to "fix" my registry. Hilarity ensued. However, I did a backup - initiated by the program - before cleaning the registry. Then, when I had a problem, I tried to merge the backup. I got an error (attached). I tried importing the backup, and got the same error. I logged on as a Super Administrator, same thing. The computer still works. There are a few annoying bugs that appeared which I'd like to squash. I don't see anyway forward. It looks like the ccleaner backup was corrupted during creation. Am I missing something? Do you have any advice? TIA