!!! IMPORTANT: Please connect USB-to-OBD2 adapter to OBD2 socket of your car to power-up device!

Drivers installation guide for Windows 10 in the file "AN_396 FTDI Drivers Installation Guide for Windows 10.pdf". 
See section 3 "Installing CDM Drivers" (manual installation).

For other Windows OS versions please visit:
http://www.ftdichip.com/Support/Documents/InstallGuides.htm

Download manual for your operation system and see the section "Installing CDM Drivers".