Hi @wlocz, sorry to hear about your issues.
Certainly the first thing to investigate is the issue of Windows not being able to install the driver. Also, check your BIOS is the most up to date to ensure chipset compatibility.
How do other USB devices function on the USB ports? I would also consider looking at the Inateck forum (or contacting their support) asking about this driver problem.
Finally, is there some means you have to test the Tobii on another system in the unlikely event their is a hardware fault with the tracker?
It seems the ASUS SABERTOOTH has front USB3 panels.. do they detect the Tobii Tracker?