Windows 8.1 computer doesn't recognize PWD2

Get error message. Happens when I connect DAC to computer via USB cable. I can’t install the driver. Anyone know of a workaround or fix?

Thanks

I figured it out. My windows 7 computer now doesn’t recognize the device (PWD2) either–which had previously never been an issue. PWD2 has a bad USB port–it was always wobbly to begin with. Anyway, I used a Resonessence Concero as usb/spdif bridge between computer(s) and PWD2 and PWD2 played fine. I prefer the USB sound to coax–so I plan to send PWD2 to PSA for repair.