Me too--I needed, and have copied to a folder, usb.inf, usbstor.inf, certclas.inf (three times) and nt.print.inf.
I renamed them .reg but cannot send them to windows\inf because it is hidden. When I go to control panel/folder options, it won't open up.
I did sent them to windows/system32-but I think I made an error in doing so. HELP.