Hello everyone,
my friend send me an invitation for "Welcome Back in Eorzea" campaign. So, I reinstalled the game and even bought StormBlood (I stopped at Heavensward). But when I start the game, I get an error message when the game window (after entering my logs) launches.
DirectX11 : https://imgur.com/iMpdLZP
When I disable it via the launcher configuration button : https://imgur.com/YPzGTE9
The pc is like new, it has been formatted, the drivers of the graphics card are up to date. Same for the DirectX.

When I check in my :C harddrive, I have the dll files. So I don't what's wrong and I'm not good in computer.

Operating system : W10 64bits (10.0 build 17134)
Asus G750JM
Bios : G750JM.205
Processor : Intel(R) Core(TM) i7-4700HQ CPU @2.40Ghz (8CPUs), ~2.4Ghz
Memory 16384MB RAM
DirectX 12
Nvidia GeForce GTX 860M and Intel(R) HD Graphics 4600