When I was searching for a no cost AV choice, I saw a large number of people saying that Avast Free Antivirus security software was the best on the market and why? They have simple, they have the most features and it includes the best one-click scanning. Everything I don’t like about avast free antivirus it is the advertisings that pop-up, but I know that they are generally there for a rationale. Read on to discover what they are.