Free Internet Security

Regarding discussions about anti-virus and firewall software these often out perform some that you pay for, you should have anti-virus and a firewall on any windows pc. Remember to turn off your windows firewall if you use a third party one.

Free Firewall & Antivirus combined
http://www.softpedia.com/dyn-postdownload.php?p=108888&t=0&i=1

Free Anti-virus
Avira
http://www.softpedia.com/get/Antivirus/AntiVir-Personal-Edition.shtml

AVG
http://www.softpedia.com/get/Antivirus/AVG-Free-Edition.shtml

Avast
http://www.softpedia.com/get/Antivirus/Avast-Home-Edition.shtml

Free Firewalls
Online Armour
http://www.softpedia.com/get/Security/Firewall/Online-Armor-Free.shtml

Outpost
http://www.softpedia.com/get/Security/Firewall/Outpost-Firewall-Free.shtml

PC Tools
http://www.softpedia.com/get/Security/Firewall/PC-Tools-Firewall-Plus.shtml

Zonealarm
http://www.softpedia.com/get/Security/Firewall/ZoneAlarm-Free.shtml