Top 5 list of best free antivirus software in the world 2017

4: AVAST! FREE

Avast is an efficient antivirus which is provided free for Microsoft windows and one of most used by the users of Microsoft windows, it is as much popular that it needs no introduction about it. So it is praised and liked by users and most used antivirus software in this world because it is also provided as free, it is not only avast but it is now multi functional as it is very easy to use, to detect and scan all kind of malware, spyware and viruses.

So after installing Avast it provide full security to the system so it is provide free for just windows but also for Linux, Android and Mac users and this is been available in 41 different languages, also winner of trust Award.