I found Sysnative Forums while Googling possible solutions for the CBS.Log issue, and it appears that I have found the right forum. Apparently, the experts here have helped others in resolving this vexing problem and other problems. So, I know that someone here can help me too. Everyday I learn something new about computers and the issues that crop up seemingly on a daily basis, but I still have so much to learn. People say that you can't teach an old dog new tricks, and at 67 I am definitely an old something! However, I would like to think that I am not too old to continue learning and benefiting from the expertise of those who are much more knowledgeable than I am.
Having said all this, I still need help with the corrupt files that Windows 7 was unable to repair in the course of the system scan. Although I subscribe to a tech support service, it was of no use to me in resolving the issue I have encountered. I was told to use my Windows 7 Ultimate disk to repair the corrupt files. Unfortunately, to do that I would have to perform a clean install rather than using the upgrade feature, because my disk does not have Service Pack 1 on it, and I cannot uninstall Service Pack 1.