When I first installed BIAB 2011 on a new laptop that had Norton Anti-Virus (NAV) on it, NAV automatically quarantined the files and it was a hassle to get them back and turn off NAV. For someone who just wanted to start figuring out BIAB (A big enough challenge! ;-)), this was a huge distraction.

Others commented that they've had less-than ideal experiences with NAV (I'm being kind to NAV), so thought I'd start this thread to caution others.

And also to get feedback on what anti-virus software does seem to work well with BIAB. (Or maybe you turn it off whenever using BIAB?)

Anyway, I've used Avast (Free version) for years and it has been relatively painless. (Although I only used it with a 2006 version of BIAB - once I get my laptop situation resolved, I'll try Avast with BIAB 2011)