final fantasy xiv has stopped working

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

Good afternoon and thank you for posting in the Final Fantasy XIV Technical Support Forums.

I apologize for the delay in our response to your concern. How long have you been experiencing this issue? Could you provide a system report? Simply go to the 'Config' option on the Final Fantasy XIV launcher and to the right of 'System Information' click on 'Display.'

Thank you for visiting the Final Fantasy XIV Technical Support Forums.