Davey:
Thanks for the quick response and help. After posting, I gave it one last reboot (my seventh) before going to my backup disk. "My Computer" healed and now works.
I am not sure I would have been able to merge the CCleaner.reg backup without using the "My computer" directory to find and execute the backup file. Maybe in future versions we need a "Resore" button or store it on a floppy.
I have no Advanced options selected. There are no Options > Include or Exclude entries. There are some cookies marked for preservation.
Strike the prior versions comment. Although it did happen, I also ran Registry Mechanic at the same time. I thought RM was the problem and unistalled it. I don't remember if I ran CCleaner after the uninstall.
oregoncoast