Some antivirus products strictly handle the core issues of cleaning malware from infested systems and preventing any further attacks. McAfee AntiVirus Plus 2013 handles the basics plus firewall protection, website reputation with antiphishing, and a number of other useful tools. It's not the very best at fighting existing malware infestations, but its wealth of bonus features may offset that weakness.

Many security vendors sell antivirus products in packs of one or three licenses. McAfee's 2013 line takes a different approach. You get your one license for $49.99, then add as many additional licenses as you want for $15 apiece.