luiz, iirc, windows creates a limited number of usb connections and every time you plug in a thumb drive, usb drive, keyboard or similar device then windows must create a "pseudo-driver" before it can "talk" to the device. the number of such pseudo drivers is limited and, yes, clearing them requires a knowledge of registry editing. i believe that scott mentioned a free utility that would clear your registry but i don't remember the name or the link. hopefully, scott will check in on this.

Last edited by Don Gaynor; 01/11/12 10:16 AM.