The best free antivirus software is a matter of opinions. Some people prefer Norton while others will opt for McAfee. Most of your computer illiterates will opt for the best free antivirus software most recognized by other users, e.g. Norton. Norton is one of the most popular used virus programs, but some people use the free antivirus programs offered to them by their Internet provider, e.g. Comcast offers free McAfee, as well AOL offers free McAfee Virus software. Norton’s newest programs give you a few options. You can quickly test your system to see if there are any present viruses, or you can conduct a complete search to cover your entire system. Norton will check for spyware and viruses. It will also see if you have any security risks, such as out-of-date or missing files for your current antivirus program. You will be opting to update if Norton finds any problems. If you have viruses on your computer, Norton will quarantine them or delete them. Norton offers tips as well. You can learn how protect your computer, and keep it safe from infections that are coming in our future. The program claims to stop them before they start spreading.