This is the best PC protection I have ever installed. I bought the Avast premier version. So , after few months of experience , here are general reviews of this software. It is very silent anti-virus as it works in the background without disturbing the user. I even tested its real time security by downloading a fake virus and it immediately identified it and terminated the virus from my PC. The user interface of this anti-virus is very friendly as well. The ram consumption of this antivirus is also very low so it does not affect PC speed , while its working. the main issue of this anti-virus is just the cost and nothing else. It is very expensive to buy but at the same time it is worth the cost.