In this article I’m going to focus on some free antivirus program of which there are many, like Norton, McAfee, Kaspersky and Trend Micro. When you want to search for a Windows 7 antivirus program you have to make sure it’s fully compatible. All these free options have their good points. So before select one, go through the websites and have a quick look on comments who share their thoughts about free antivirus app. of their choice.