I've been using AVG for the last two years. I had Norton before that and it was pretty good, but I decided to stop paying for service (on sale for fifty bucks?? - it used to just BE thrity or forty!). A few months ago, I even stopped using Ad-aware, because AVG finds cookies and stuff. Everything seems fine. The only issue I've had with AVG is: sometimes I've started up my system what has appeared too early in the morning, and the update didn't take place that day until the afternoon or evening, and I had to do it manually.