Drivers should be held in the driver cache
If you look in device manager and check the properties for the device it will list the drivers you can then make a copy of these driver files to a new folder
Unplug all USB devices
Download and run
Uninstall ALL devices that are shown as not connected.
Reboot the machine.
Plug in your USB device and windows should then find new hardware and reinstall the drivers for the device.
If it needs the drivers (unlikely as they should be in the driver cache) you can then point windows to your new folder.