Comodo Antivirus Special Edition has a better approach. It’s based on the concept of prevention, not detection. Our Antivirus Special Edition software features groundbreaking Defense+ technology that efficiently closes this window by treating unknown files seeking access to your PC’s critical resources as potentially harmful. Defense+ automatically isolates such files so they can’t harm you or your PC. Comodo AntiVirus 2010 leverages multiple technologies (including on demand & on access scanning, email scanning, process monitoring and worm blocking) to immediately start cleaning or quarantining suspicious files from your hard drives, shared disks, emails, downloads and system memory. Comodo AntiVirus 2010 is easy to install and configure, will not slow down your PC by hogging system resources and Comodo AntiVirus 2010 is 100% free. Once installed, Comodo AntiVirus will unobtrusively sit in your system tray, silently and efficiently defending your system from the latest virus outbreaks. Comodo Internet Security 4.0 includes a built-in sandbox which combines file system/registry virtualization and least-privileged user account principle in order to combat unknown malware.