Boggin, I'm afraid I'm not comfortable with opening the PC case and doing what you suggest, but thanks anyway for the suggestion.
Since all the corrupt files seem to relate to Edge, and to be minor, and bearing in mind that Edge is a work in process, I am going to forget about attempting to repair those files.
I have another problem. I ran the Tweaking.com repair tool in Safe Mode and one Reparse Point error was found. It referred to an infinite loop and mentioned the type was Junction, and I believe it concerned C:\Program Data, but I couldn't see all the path as the window wasn't wide enough.
I used the repair Reparse Point option, but after the repair function completed the same Reparse Point error was shown. I ran the repair Reparse Point option again, several times, but it made no difference.
I then ran the repairs option, but after over 6 hours the repair was still stuck on the first repair, Reset Registry Permissions. Could this be because the repair Reparse Point did not work?
Please advise what I should try next.
Thanks and regards, Roy