is there a free securitiy system for computers?

Question

i know there is norton anti-virus and such, but dont' really want to pay for virus blocker or whatever.

Answer 1

There are free and good security programs here

http://www.webuser.co.uk/forums/showflat.php/Cat/0/Number/219333/an/0/page/0#219333

Click on the product's names and it will take you to the download page.

My recommendations - AVG antivirus, Zone Alarm firewall, AVG anti-spyware (formerly called Ewido), and Spyware Blaster.
Please ensure that you keep them all updated for full protection.