According to PC World magazine, G-Data Antivirus holds the number one spot in the top ten antivirus software programs. When tested, it found most of the malware that was on the computer. It is easy to work with even if you are not very computer savvy. Symantec Norton Antivirus is another great program for those who are looking for great protection and less worry about setting it up. It offers a strong protection and if very user-friendly. Kaspersky Lab Antivirus is another great software to keep your computer safe. It is great at detecting threats. Choose one of these three to keep your machine virus-free.