Here's something that's helped me:
USB mapped to location (0) fix
- Right click "My Computer"
- Go to "Manage"
- Expand the folder marked "Storage" (click the + sign next to it)
- Single click "Disk Management"
Here you will/should see your device even if it is mapped to location (0)
and you can see the actual location it it exists (like E:\) and you
can type this as the address on the file manager
If this doesn't work, you should check out also "Control Panel" ->
"Computer Management" -> "Disk Management"
There you should see the device and the location it wants to be in (like E:\).
If you have already mapped a network drive to that location (E:\), you
cannot access the USB device. So you must disconnect the network
drive. Then type this location E: as the address on the file manager.