Your Unified Solution
For PC Security and Performance

Download Free Antivirus and System Optimization Utility

Simple yet Powerful

Protection

Speedup

Cleanup

We are Security

Integrating award winning antivirus engines from 360 Cloud Scan Engine, 360 QVMII AI Engine, QEX and Kunpeng to provide you with the ultimate in Virus detection and protection capabilities. 

Anti-Ransomware Arsenal

Ultimate protection for your documents

Realtime Detection

Cloud technology detects latest Ransomware variants in realtime

Intelligent Blocking

Intelligent behavior monitoring to identify any document hijacking

Document Protector

Automatically backup your documents before they are tampered with

The best and most efficient utilities I have used and it's free.

This is the best antivirus solution I have ever had! Five engines in one product, it's amazing!

828 768 979

People Protected Worldwide

I love it. It's easy to use and understand. Simple and convenient.

Excellent software! I really appreciate your excellent service and hope you have continued success.

“ The future of antivirus is here ”

© 2014 - 2024 Beijing Qihu Keji Co. Ltd.