7 Good Free Antivirus Software for Windows

Antivirus software has become one of the essential software for our computer setup. However, most famous antivirus software are commercial software, and we can at best legally obtain a time-limited usage license, such as Kaspersky, NOD32, Norton, McAfee, etc. Of course, in China, we can easily get the free serial numbers and activation codes to use these antivirus software. In fact, there are many free antivirus software that also have strong virus elimination capabilities, and they perform almost as well as the commercial ones. Most of them just simplify some extended functions. Therefore, for ordinary users, the following 7 free antivirus software are almost sufficient.