There are dealing three or four topics on the installatiton procedure from previous versions to 15. I remember problems on my pc as well, but not exactly what and my solution.
There was someting with early map access also for program update.
Thanks alot, i need a new setup utility i guess. But how can i know when the setup utility is updated and i dont download a old one which i have already..... Where is the release notes page?
Solution found: "C:\ProgramData\Navigator\x.y\Install\setup_pc_navigator.exe" have to be deleted. Otherwise its not possible to download the new application version, because the program dont know which version is already downloaded.