Avast Online Security: Avast Free Antivirus Features Avast is one of the best free antiviruses on the market. At present, 435 million Avast installations are in use worldwide. Avast is also used for free by many users. That is thanks to a free Avast version, which offers (almost) top-tier security. Avast Antivirus Review ? Key… Continue reading Avast Free Antivirus Features