Avira Free Antivirus - Now includes protection cloud technology Built upon the same award-winning technology found in our premium products, Avira Free Antivirus helps keep your PC malware-free while protecting your privacy. Lightweight and powerful, Avira Free Antivirus offers Real-Time malware detection, privacy tools and safety ratings for your search results. Feature Set: Advanced Real-Time Protection: With Avira Protection Cloud detection technology. AntiAd/AntiSpyware: Blocks Adware programs and online snoops. Browser Tracking Blocker: Prevents others from recording your online habits Website Safety Advisor: Clear safety ratings for your search results (these features are included in the Avira Browser Safety - a browser extension for Firefox and Chrome).