WOW just stumbled upon this one and it's 5 pages already!! Hey Fred - it's much easier to just buy a new computer - don't even bother trying ... you'll end up filling it full of lead in the backyard anyway. Trust me on that one.
Windows SUCKS. I swear they purposely engineer these things to fail every 5 years. My computer has been acting strange lately too. It's coming up on 5 years old, just like my last computer that acquired a nice ROOT KIT around that same time. Went to every website on the net ... NOTHING could fix this one.
Kapersky didn't work, and not a single suggestion from any of the computer gurus on the net worked. I shitcanned it and bought a refurbed unit.