officially we can get upto three year licence of avast internet security by recommending friends offer deatails go to https://my.avast.com Now Sign in avast account / Register at avast Invite your friends to install avast! Free Antivirus using your referral link Once a friend installs avast! via the link above and starts using it, a credit is counted toward your avast! Account. If you reach the needed number of friends, you can download your free Internet Security license. 7 Friends Internet Security(1 PC, 1 year)$49.99 14 Friends Internet Security (1 PC, 2 years) $69.9