Hello, I am sorry for repost, unfortunately I did not find how to make a separate office, but only asking a question, I hope it's nothing to worry about.
Also, sorry for my english, I'm from Russia, and can prevent some errors.
I read all the solutions to this problem, and would like to share with you how I solved it.
I bought the game, downloaded, launched, everything is standard, as you did.
My laptop - Lenovo y5070
Configuration ::
CPU Intel Core i7-4710HQ
Video card Nvidia GTX860m 4GB
HDD - SSD Kingston 256GB
RAM 8GB HYnix
Operating System - Windows 8.1
capacity x64
Tried all that is possible (as described in this topic), that ultimately helped me:
installing the driver from the -- Nvidia version 364.51 x64 for windows 8.1 - clean install
program installation -- borderlessGaming 8.4
then the game starts, first in the window, and then automatically expands to fill the screen
Good luck in the game! I am pleased that the money is well spent.