Kaspersky is the best anti-virus. I use this anti-virus for my computer since 2011 and till now my computer is fine.

Normally you can try kaspersky anti-virus 2012 for 30 days trial. But in this promo you can try it for 90 days trial active subscription.

To get your own a free trial version of KAV 2012, just download the installer that will expire 90 days after you install it.