Totally Agree with this…the Avast Forum A/V experts are excellent.
Doing anything other than going thru the steps posted will slow, not speed up, the recovery.
http://forum.avast.com/index.php?board=4.0
Be patient…this is not a quick fix process so go thru the steps.
Also, venturing out and trying fixes without proper guidance can get you in worse trouble…in other words using removal programs without knowing how they work and having specific direction to remove the targeted issues can truly brick your PC beyond recovery.