Free antivirus software ClamWin

ClamWin is from the United States and is a fully free antivirus software for the Windows operating system. It has a small size, supports automatic updates, does not consume too many computer resources, and has a fast scanning speed and high efficiency, making it a powerful antivirus software. The only downside is that there is no Chinese version available yet, and it does not support real-time virus scanning; regular scans must be scheduled.