McAfee AntiVirus Plus - Free 6 Month Subscription
It also features award-winning, easy-to-use McAfee SiteAdvisor – an online safety guide that warns you about risky web sites before you visit. And the Mcafee Active Protection technology instantly analyzes and blocks new and emerging threats in milliseconds, so there’s virtually no gap in your protection. Unlike the competition, threats are analyzed and blocked in milliseconds, so you don’t have to wait for regular updates to arrive.
McAfee AntiVirus Plus (official website link)