Click on the above link to see the best antivirus software for 2011.
Click on the above link to see the best antivirus software for 2012.
How to secure your computer:
1. Computer Virus protection: http://www.antivirusware.com/articles/computer-virus.htm
2. General computer security: http://howto.cnet.com/8301-11310_39-57324404-285/how-to-secure-your-pc-in-10-easy-steps/