Available from 14th of June, a very light and on cloud technology based antivirus. It really is like Cheetah, in my computer it's startup takes 2.7-2.8 seconds (I have special timer to register all starting times). At the same time, the majority of antiviruses were from 70 to 90 seconds to start. It can also be used in combination with other anti-virus programs, etc.. Lots of possibilities for create exceptions on scanning. The first impression is very good, anyway. Try and write your opinion. This is absolutely free software. Kingsoft Free Antivirus Features: • K+ Defense. Brand New Cloud Proactive Defense, Intercept Popular Virus Comprehensively. • Smart Scan. Fast, Smart and Light, Smart Scan Makes Scanning within Minutes. • Light. Incredible Light & Fast, Fully Optimized Resource Usage Free Up PC Startup and Performance. • Compatibility. Perfectly Working with Other Antivirus, Provides Outstanding Protection to End Users. Read more over the homepage itself.