yea I had to format my comp because I couldn't get online, nor play games and such.
today I reinstalled windows but it don't read any usb device, and it says something about that it can't find NTKERN.vxd. I would be happy for help.

USB drivers?

http://www.google.com/search?q=NTKERN.vxd&sourceid=opera&num=0&ie=utf-8&oe=utf-8 and click the first result.

problem solved. thank you for your help. even if I solved it by reinstalling the usb devices couple of times ;)