If you used PC TuneUp, better try Rescue Center.
I changed (took your recommendations) my font under Increasing My Performance - Visual Effects. I changed SO many things (15) and I MUST undo this. It looks like a 1950's typewriter font. I don't know how. I got to font somoothing and it indicated I needed to select clear type. Can't find it. HELP!
If you used PC TuneUp, better try Rescue Center.