Software by Kingsoft Security

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.

The Kingsoft Free Cloud Antivirus security solution for PC users. Cloud Antivirus defends against viruses, malware, and spyware in real-time. Cloud includes a disk and history cleaner, an LSP, a process supervisor, a set of system repair tools.