Please install update and do a full system scan asap, and dont disable it.
free programs
Install atleast a free anti virus and firewall program
Dont make the common mistake of installing more than one anti virus or firewall
AVG Anti-Virus-Free:
http://www.grisoft.com/us/us_dwnl_free.php
AntiVir Personal Edition:
http://www.free-av.com/
avast! 4 Home - Free antivirus software :
http://www.asw.cz/eng/free_virus_protectio.html
Understanding and Using Firewalls:
http://www.bleepingcomputer.com/foru...howtutorial=60
ZoneAlarm provide's a paid for and free version
http://www.zonelabs.com/
http://www.zonelabs.com/store/conten...=en&lid=nav_za
Free Firewall Software - Comodo™ Firewall:
http://www.personalfirewall.comodo.com/
Outpost
http://www.outpost.uk.com/download/outpost1.html