What is your OS version?
Could you please try with another USB cable (maybe short one) and by using another USB port on your computer?
Please make sure the uTrack-X32 not connected, reboot your computer, start the driver installer and connect the device once the driver installer ask you to connect.
thank you for your answers. The OS verion is Windows 10 Home.
I already tried different USB cables and also the installation while set power off. But without success.
I now decided to do a new Windows installation. This is also to cleanup the old upgraded Windows 7 installation. I hope then some system functions will have a better performance as well.
After this I will give feedback again.