With that said I'd never use Avast anyway. I don't use programs that want part of my S.S.N number, here in the US anyway. Anyone that ever used it and gave them part of your S.S.N number the day will come when you'll pay a price for doing so.
I sent them an email years ago telling them what they could do with their request for part of my number. So I don't know if they still ask for it or not. But I don't deal with companies that do or did anything like that. Just like that software BestBuy pushes on people for security I'd never us it either. And the list goes on
Follow FM!