system restart

hi I keep at random times ill be logged into the game and playing and for no good resion it causes my desktop power to turn off then turn back on like a crash or restart and when it shouldn't as none of my other games or programs do this at all only FFXIV does this and its as far as I know not caused by anything from my desktop anyone know what it could be other then a bug or virus as I hav no idea why its happening just that it does or is it just the game or launcher or perchance the server ? any information would be of help if it could solve the problem thanks

its your computer, figuring it out will require more information.

Information from Event viewer will help.

only thing I can think of that's even close to making it do this is that I downloaded and updated my grafix driver as iv had it give a message saying once now and then driver has crashed and has recovered that's the only thing close I can think of