When I click retry a couple of times the message. So I just bought TDU2 for Steam and when I want to start it the message below appears. Idk then maybe u have older version or smth cuz when I had some problem's downloading different one was enaugh, but if it's newest one. An error occurred while verifying your product license. Clean install Windows 10, not upgrade. Backup your data first or install Windows on a spare drive (or buy a new one and keep your current drive. . A possible reason for this is that. tdu2 unlock code. The hardware of your system could not be identified.