Driver uTrack X32 dont work

So if I understood correctly you have one PC where you can use the driver correctly that is Win 7 pro; then you have an another PC with windows 7 (that is not pro? 32 or 64 bit?) where you have that issue with the signature? And you have a KB3123479 patch installed on both two PC?
Could you please try to remove the driver, reboot the PC then install it again?