I plugged in my flash drive and noticed a folder called 'RECYCLER'. I tried to delete it but it kept on coming back. Tried deleting the "autorun.inf" but it keeps on regenerating. Now I'm afraid that my macbook might also be infected. How can I get rid of the virus on my USB? Tried downloading AVG antivirus but the site said it's compatible with vista and xp, not os x. Help?