just download the microsoft fix at
Virus alert about the Win32/Conficker.B worm Most people get so paranoid about this sort of stuff -- if you regularly use Microsoft Update and don't download software from dubious or \"Torrent\" sites then you can be reasonably safe. Don't also open emails from unknown senders or open any attachment unless you know who sent it and ABOVE ALL - STEER CLEAR OF ALL THOSE PROGRAMS / WEB SITES OFFERING TO SCAN YOUR COMPUTER FOR DRIVERS OR FIX YOUR REGISTRY -- these are normally a 100% source of spy / mal / adware .
Cheers
-Jimbo