Kingsoft Free Cloud Antivirus provides the most powerful, free security solution for PC users. Kingsoft Free Cloud Antivirus automatically defends against viruses, malware, and spyware in real-time. Detect all types of viruses and threats using multiple guards. Cloud Antivirus includes features such as Download protection, USB flash device protection, Disk cleaner, History cleaner, Process supervisor, LSP repair tools, and System repair tools. AV-Comparative awarded Kingsoft Antivirus the coveted "The Best Scanning Speed" and "The Best Overall Performance" awards. AV-Comparative has been awarded the "VB 100 certificate" nine times over. Kingsoft Free Cloud Antivirus Highlights Online live help support. All in one antivirus, anti-spyware and anti-malware software with multiple guards. Automatic protection against viruses, trojans, worms, spyware and malware. USB device protection for better preventing the spread of viruses and ensuring computer file system is most protected. Detect all types of Keyloggers and Rootkits. Block pop-ups windows, phishing sites, and ensure your information is ultimately safe. Automatically search for frequent updates against the latest threats. Cloud is smart, efficient, and easy to use. Back-up Virus Definitions (optional) Kingsoft Free Cloud Antivirus monitors and processes viruses in real-time by scanning our online database, 'Back-up Virus Definitions'. Download 'Back-up Virus Definitions', and scan when you are working offline! What is new? Fixed a bug. Provide live help services online.