I NEVER get viruses, and I actually got one from someone's USB flash drive!
Easy way to check if you have it is trying to go to microsoft.com or symantec.com.
If you can't go to them, you probably got that new downadup virus that spreads through USB drives.
You can download the removal program here:
http://www.bitdefender.com/VIRUS-100...nadup.Gen.html
or
ftp://ftp.f-secure.com/anti-virus/to...f-downadup.zip