Why don't you calm down, accept the fact that are not responsible enough to own a computer ten go and buy some anti virus software.

Norton is cheap in the US and is one of the best. However, you could get the AVG free edition which is just as good as any commercial software.

Go get it here:

http://www.grisoft.com/html/us_downl.htm

It includes:
AVG Resident Protection
AVG Email Scanner
AVG On-Demand Scanner
Basic Scheduled Tests
Free Virus Database Updates
Automatic Update feature
Easy-To-Use Interface
Automatic Healing of infected files
AVG Virus Vault for safe handling of infected files

Sorry to sound nasty but I receive at least 2 emails a day from people I've traded with, each time its a virus. Lucky for me, I have protection.

Computer virus is more of a case of prevention rather than remedy.