final fantasy xiv has stopped working

[Numino]

Hello,
I am experiencing an unusual problem. When i click on the game icon to start the game it stops working and is showing me the following massage " final fantasy xiv has stopped working". I do not understand what the problem could be since every other game i checked is working just fine.

1) I restarted the PC
2) I did check if there are any viruses and other things
3) I have changed my password, as recommended by some people

Nothing is working

//edit

So i uninstalled the game, so i can reinstall it. Big mistake. Now i cant launch the game. It gives me that massage and nothing else and closes