Hello :)
Firstly, your SFC result is absolutely nothing to worry about. There was a bug in one of the recent Windows Vista updates which caused SFC to incorrectly detect as corrupt some non-corrupt files. This is what is happening here. So, the only thing you need to know is that SFC is detecting no (actually) corrupt files :)
Now, there's a specific tool I want you to run next, but I've lost the link. I'll have to wait until I can get home to post it to you. Please hang in there :)
Richard
