There are programs like Flash Disinfector or Protect My Disk which will do this.
If you are not working anywhere, it will help, if you can volunteer your IT skill services to gain valuable experience.
DISCLAIMER: DMOZing.com is not affiliated in any way, shape, or form with DMOZ, AOL, Netscape, their management, entities or their official websites. Links to external websites on this website does not constitute endorsement.