Solve : usb not recognized?

1.	Solve : usb not recognized?
Answer» I have a mp3 player that when I CONNECT to my usb it isn't recognized. What I don't understand is I have 3 other mp3 PLAYERS, same kind and I haven't had any TROUBLE with them, when I connect them it shows in the control panel as removable DISK (e). When I connet this one it also freezes up my screen. In ORDER for me to ad ???drivers and firmware does it have to be recognized? Please somebody help me!If you have three other identical MP3 player, the fourth may be faulty.

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