. Backup your data first or install Windows on a spare drive (or buy a new one and keep your current drive. When I click retry a couple of times the message. A possible reason for this is that. An error occurred while verifying your product license. The hardware of your system could not be identified. Clean install Windows 10, not upgrade. tdu2 unlock code. 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. So I just bought TDU2 for Steam and when I want to start it the message below appears.