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usb device not recognized,plz help
well
i have a problem with my usb mass storage.my usb ports read usb mouse,data cables but they do not read pen drives and as i attach a pd,it shows "usb device not recognized" or "device driver not installed". it was working fine in xp but now in win 7 it doesn't. i have installed all drivers and have tried every software but it doesn't work. plz help
motherboard: intel dg31gl essential series