Norton AntiVirus defends your PC against detected viruses, spyware, bots, worms, and more while minimizing the performance impact or getting in your way. The improved Norton Protection System features multi-layered protection technologies that work together to block attacks proactively and detect and remove threats before they can harm your PC.
Pulse Updates every 5 to 15 minutes, and real-time online security checks help ensure continuous, up-to-the-minute protection against the latest threats. New SONAR 2 (Symantec Online Network for Advanced Response) technology monitors your PC for suspicious behavior to help detect and eliminate the most recent breaking threats.
Intrusion Protection defends your PC from web-based attacks so you can surf with confidence. And new Vulnerability Protection blocks security holes in your PC's operating system, applications, browsers, and browser plug-ins to prevent hackers from exploiting them.
The new Norton Performance System ensures reliable protection that won't swallow up system resources and will minimize performance impact. Norton AntiVirus offers the fastest install time, the fastest boot time, and the lowest memory requirements of any antivirus and antispyware solution. Norton Insight technology identifies and targets only files at risk for less frequent, shorter scans and the fastest scan speeds in the industry.
In addition to usual antivirus protection, Norton AntiVirus provides easy-to-understand threat and performance information to help you prevent future infections and keep your PC running fast. Plus, only Norton AntiVirus is backed by Symantec Security Response, which provides comprehensive, global, Internet security expertise to guard against today's sophisticated threats.
The Norton AntiVirus application scans faster and uses less memory than any other antivirus product on the market.
Avast! Free Antivirus is the perfect package of applications for people who send e-mails and surf popular websites to protect their computers from a virus infection or other malware threats. Be sure to see How to Install Avast as a Lightweight Antivirus.