Avast Free Antivirus 5.0.677
Avast Free Antivirus is based on multiple protective layers that work together to provide security. The product is designed for the average consumer who wants easy-to-use protection for basic email and web surfing. It is limited to home and non-commercial users. New features match top detection with increased efficiency. Computer memory requirements for the new antivirus and antispyware engine have been cut in half. Scanning is 40 percent faster, saving both time and computer resources. Complete rootkit protection includes real-time detection to ward off initial installation, on-demand scanning and boot-time scans.
From AVAST Software: