HP Envy 14 1190ea Blue Screen

Hello guys.

I have a HP laptop as it says in the title and I'm struggling to find a solution to every single Blue Screen I get for everytime I try to play a game.It's not the AMD graphics , as I have already solved that , but I was wondering if it might be the Windows 7 Home Edition 64-bit Service Pack 1.

Can anyone help , please?

Thanks in advance.

EDIT:

I forgot to say that before installing the Service Pack 1 , everything was fine , the computer did not crash , no Blue Screens ( I mean BSOD) , nothing at all.