i believe i am the exception when it comes to people who use windows, but i have:
a) never used virus prevention program
and
b) never had a virus.
I suspect this is probably false... if you installed some AV you'd probably find some malware.
It's NOT all about practicing safe surfing... with the huge number of Adobe, Firefox, IE, and Java 0-1day vulnerabilities as well as XSS on public forms, and nothing to monitor the integrity of your OS.
Well written malware isn't something you notice.
Dyn