Thank´s that worked

Hello,
i just bought the game but it wont start from the Steam launcher.
I get instant the error " Unexpected error occurred"


0.000 2019-04-02 11:42:35; Factorio 0.16.51 (build 36654, win64, steam)
0.000 Operating system: Windows 7 Service Pack 1
0.001 Program arguments: "F:\SteamLibrary ...