Antivirus free download: http://antivirus-software.tech.officelive.com/the_best_free.aspx As I mentioned in the first video at YouTube, the best free antivirus software is a combination of several different free software programs. The information on this page has been updated since the original video. If you combine the right antivirus and othere security programs, you will have a good level of protection for your computer. The free software will protect you from virus, malware, spyware, hackers, phishing, scams, fraud web sites, and a lot more. A good security program begins with four basic components: (1) Antivirus, (2) Antispyware, (3) a good firewall, and (4) a secure web browser. The other components are optional, just add the ones you want. If you have an older computer, installing too much software may slow it down.