Hi, Rainer - Your problem is that Win10 updated the USB interface with Win10 v1709. I have been running Win10x64 v1703 in a VMWare Virtual Machine (VM). Oracle Virtual Box should work, too.

My Win10x64 v1703 VM is almost never connected to the internet - I leave the VM network component disabled. This is crucial, because you don't want your Win10x64 VM to accidentally get automatically updated to a more recent version of Win10 - it will then become useless for Pronto Pro programming and you would need to create a new VM.

Alan