Clicking on "Play" = restart

hello.
on new installed win 7 x86 ive got problem with starting game. after clicking "play" button on website i get restart pc. any one can help me?

 

can be anything but my best bet goes for overheating, did you clean your computer recently ? or its maybe to old?

wtb info

 

check the temperature of your pc ( motherboard, cpu and graphic card )
check your drivers or your pc ( motherboard, cpu and graphic card )

 

no its not to old. i cleaned everything then instaled win 7 on an empty hdd. but i found another problem: when wanted download some program for checking temperature etc. (anyway file with ".exe" ) i get same restart, so i think its not hardware but something with windows 7.

 

check your drivers and make sure that your pc can support windows 7

 

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best regards