Free Internet Security?

Avast anti-virus which better definitions, anti-spyware and anti-rootkit built in, faster and more reliable:
http://www.download.com/Avast-Home-Edition/3000-2239_4-10019223.html?part=dl-AvastHome&subj=dl&tag=button&cdlPid=10852750
Setup Guide:
http://www.linkbrander.com/go/70739
AV Comparison:
http://www.virusbtn.com/news/2008/09_02
http://www.av-comparatives.org/

Use RevoUninstaller to remove any previous antivirus installations:
http://www.download.com/Revo-Uninstaller/3000-2096_4-10687648.html?part=dl-RevoUnins&subj=uo&tag=button&cdlPid=10854684
It's faster and better than add / remove applet.
When you run it highlight the item then select uninstall in next window select Advanced and click Next, follow prompts when uninstalled it will scan registry and drive for leftover files / folders,click + sign to expand all results and tick ONLY the bold items and follow prompts.

Comodo Internet Security is free and proven protection.


http://www.comodo.com/

there are loads of them try
Avira -
http://www.computeractive.co.uk/computeractive/downloads/2166627/antivir-personaledition-classic
Avast -
http://www.computeractive.co.uk/vnunet/downloads/2128339/avast-home-edition
AVG -
http://www.computeractive.co.uk/vnunet/downloads/2129071/avg-antivirus-free-edition
they are all free and full antivirus progams and not trial programs, note only have one antivirus program installed at any time so if you have any others installed (even expired trial version) then you will have to remove then first through your start menu, then control panel, then add/remove programs, also be careful of what site you use to download free antivirus programs from as some sites will download viruses instead of an antivirus program