Normally, I just plug in a Samsung Galaxy tablet into the USB port and it pops open an Explorer Window and I have my way with it. Then something changed. I plugged in the old tablet, and it gave me an error - usb device not recognized. It opened a system window showing me all of the possible USB ports, etc, and the top entry was the unrecognized device.
I plugged and unplugged, and tried it again. Same deal. Finally, I just clicked on the device in the USB system window, and it opened and I could do stuff again.
Hope this helps someone.
(BTW - its a laptop with Windows 7. Can't say what would happen with Windows 8.)
