Guild Wars 2

Thanks for all the answers. Reinstalled all drivers from the video card and the same thing happened.
I looked all topics related to the same problem.
I found that the only way to make the game run without turning off the computer is reducing all the game settings.
What I found really funny is that I did not notice much difference in high and low setting of the game.
Frankly I think this is a problem of game programming for certain hardware configurations.
But what matters is that I’m playing and enjoying the game.
Thanks for the replies.

my Computer
i5 3300
mobo = asus P8P67
vga = xfx 7850
mem = 8gb
source = zalman 600-rs

I just test other games like Rome 2, assassins creed 3, company of heroes 2 at high video qualities … not had any problem.
I do not understand why only the game guild wars 2 pc is shutting down.

Sorry my English, I’m using google translator.