I personally would recommend Symantec Norton Security Premium. I work at Staples and I always choose this over other alternatives when recommending this to customers. It truly is top of the line and can be used on many different devices besides just computers. Other options like McAfee and Webroot cover some of the essentials but Norton covers the majority if not all such as Firewall, Anti spam, Parental Control, Backup, Tune-Up, etc. Norton is a win-win and is easy to install. And if you feel like it is not for you, it is just as easy to uninstall and delete from your device.