Keeping your PC safe from viruses is really important, and there are a lot of anti virus out there to solve the problem. However there are too many options to choose from, especially since a lot of free anti virus are better than their paid counterparts. So what do you use? A free antivirus or a paid one? Personally I went for the middle ground: I use Malwarebytes Anti Malware, a free software to remove malwares with a "premium" paid version offering real time protection. After a free trial of one year I decided that it was worth my money and bought the premium version, and I don't regret it. However my previous anti virus, Mycrosoft Security Essentials, was pretty efficient aswell.