Oh i've found it. It is the GPS-Driver. But why must i install it on my Win 10 PC? Here i want install the Software and the Maps on my SD-Card. The Driver is only for my Naviciever needed ... I think, the Software MapFactor Install Utility has a problem with Win 10
I use a HP ElitePad that contains a Broadcom GNSS device. This is the 'new' GPS things ... that don't use a COM port to be accessed but an API.
This was working well under 8 (at least if you activate the location and that the driver of the device is up to date) but, so far, can't get it to work under 10.
I reverted my ElitePad to 8 and navigation works back, I will image the system as it try 10 once more :)