Where is the Cake?
you bring up a good point H2SO4The crashes which happened after Avast was removed would be interesting to analyse.
I'm also not seeing the obvious link to 2xexplorer. Unless it's injected its own k-mode driver, it's just an app. Doesn't matter if it's as old as the hills - it's just user-mode code. If it did somehow manage to cause a bugcheck, that would constitute a bug in the OS.
although i havent seen xplorer² load anything in Ring-0 though...
its mostly all user-mode code like you said and the worst i can do is crash itself (well maybe it can do worse things but like you said again it did bsod it would technically be a OS bug (or like i said if it was acessing a network share then it would be a driver issue) as its not running in either Ring 0-2..)
i would actually like to see which update he is talking about as i have a customer with a similiar laptop model and i have not heard any news of any errors (also configured with avast)