I apologize, I may have led you in the wrong direction. I used Avast! for the past 5 years on all of my computers, but this one is brand new. I didn’t have any other system running on it. Avast 8 is running on it, it’s a fresh install, no other AV program was installed before (even other version of Avast).
I still can remove it and install it again the way you said, but I don’t think it will solve anything.