how to remove virus from my laptop?

actually i have virus in my lapy..everytime i attach any pendrive there's an autorun folder in it..what should i do??
shashi, January 2010


done
the best anti virus i found is ESET NOD 32
they have a free trail, copy and paste this link
http://www.eset.com/download/free-trial/international
and download the smat security trial. i found its removed every virus ive had so far
hope this helps

mike, February 2011