I did a system restore back to before I ccleaned. When I tried to download the security updates the same 2 would not install while 5 others were successful. Upon further examination of the security update log, there were several updates that have failed to install since November 12, 2009 and I didn't realize it. My security updates are done automatically so I have never really paid any attention to them. I have been using AVG free virus scan and have had no problems to my knowledge with that.
I do have the vista cd just in case.
I really appreciate all your help and suggestions. It is indeed not the fault of the ccleaner, so I will try to use it again, although it did not really help my issues with my computer running slow and freezing up that I had hoped it would.
Laura in SC