AVg is shit. Its alright when you consider its free but as i get tired of saying you won't know with an AV if it misses things. Best thing is to get as many as you can and test them all, infect a spare pc. If not then look at some reviews.

When people mention AVg they always mention either:

free or
Never had any problems.

Its a shame when security is the biggest factor that most people choose economy and convenience to keep them happy.

Kaspersky, Nod, trend micro pc cilin are better.