Now to the reason of review:
Also, I had like so many others, the problem with the "activation period". The problem was solved while the installation on another computer, there worked the Launcher then right and I was able to activate the game properly. Then the game was in my Uplay games library. Download nurnoch "fast" the game via Uplay and re-install again and then everything went without hesitation.
Since I have been looking on the internet and did not find anything, I hope hereby also be able to help others who have the same problem.