Got this problem lately.

You have to replace the usbstor.inf file in your \windows\inf directory. Inf
folder can be hidden. Have your windows showing hidden files to be able to
see that folder.
In the i386 folder on your XP cd, you will have the file "usbstor.in_"
Copy that file in your windows\inf directory and issue the following command
in a command prompt windows:
Be sure to be in the windows\inf folder and type "expand usbstor.in_
usbstor.inf" without the quotes. It may ask if you want to replace the
existing file. Say yes.
After that, in the device manager, remove everything under usb section to
have windows redetect it and you should be fine after restarting windows.

"Marty" <Marty@discussions.microsoft.com> a écrit dans le message de news:
8CB3FE9F-C816-435D-B947-F6AA0F4C8D53@microsoft.com...
>I am usning XP with SP-2 on a Sony Viao, P4 3.2 MHz. I am trying to add a
> couple of storage devices via USB and the system will not recognize them.
> I
> have tried a USB flash drive and an MP3 player. Other USB devices
> (printer,
> camera) work just fine. When I plug in these devices, they show up as
> "other
> devices" in device manager, with yellow question marks and exclamation
> marks,
> with message that the driver is missing. I have tried installing a
> driver
> for the MP3 player, to no avail. Any suggestions?