Re: The game open a black screen, then closes and nothing happen... HELP!!!
@sobamelaquena Thanks for the dxdiag and all the information about what you've already tried, helps to rule things out. 🙂
You shouldn't need to run the game in Windows 7 compatibility, Windows 8 existed when the game was released. 😉 Also, firewalls etc. wouldn't prevent the game from launching, they could cause issues with the game connecting to the servers. There is an issue currently with AVG and Nvidia cards causing an issue like yours, but since you don't have AVG, that's obviously not what's going on.
Really difficult to figure these things out when they don't give you an error message or anything... Hmm... Nothing really stands out to me in your dxdiag (other than your hard drives being rather full, but that shouldn't be causing any issues, especially with just this one game).
Just to rule some more things out, are you using any mods or command line arguments? Have you checked that your computer isn't overheating or anything? (Dust can cause such unexpected problems 😛 ). Were your most recent GPU drivers clean installed? (See Fred's 'accepted solution' post on this sticky).