Did all this. Still nothing showing up when I plug in the cable, and no led on the USB plug.The USB cable is a simple USB to serial converter with FTDI chip.
The driver can be found here: D2XX Direct Drivers
Once the driver is installed correctly then you see another device in device manager section "Port (COM & LPT).
Connect Q500 with USB, start the GUI and then switch on the Q500. It should be recognized on the COM port that is indicated at device manager.