BitDefender Free Edition is a hands-off anti-virus scanner that runs in the system tray and offers real-time anti-virus and intrusion protection. The program also offers manual scanning of file via the Windows right-click menu. There are no options to configure, which makes it easy to use for novice users, but the complete lack of customization options or settings may not appeal to everyone. BitDefender Free Edition will download the latest version during installation. The free version does not include email scanning and requires free registration.