Kingsoft PC Doctor, which focuses on providing computer users excellent privacy cleaner, registry cleaner and, brilliant Windows optimization service, is your best free professional and easy-to-use Windows Diagnosis and Optimization software.
This software is not reviewed yet.
Kingsoft Antivirus 2012 is a completely free antivirus solution for detecting and cleaning trojan virus, and protect your computer with system defense K+ and boundary defense. It can be a standalone product, and can also work along with other AV.