system
5
Hey, thanks for the replies. And to answer your questions. No, I do not any other security software installed. I upgraded avast! when I got the notification about the new verion. I just went through the process, do not remember the details. I have Windows 7 32-bit, not sure what else I could tell you.
Ominimo, your problem is similar but my is not as bad. I remember not being able to boot in safe mode, then I used that Windows recovery option which I get following a failed boot, and rolled back the system. this allowed me to get into the save mode to uninstall avast.
I am really out of ideas. It has become a major pain to uninstall and install every time I want turn my PC on. So work hard 
Cheers.