system
4
Download these 2 tools and run them to remove Avast and clean up all the components.
Then try a fresh install of the trial version.
Run them in this order :
-
http://files.avast.com/iavs9x/avastclear.exe
-
https://skydrive.live.com/?cid=94a12102e5094675&id=94A12102E5094675!952&authkey=!AHu_KR3cJN1jHt4