How old is this laptop ? Have you tried blowing the dust out? Tried a laptop cooler for this might help if it is a heat issue. Also try using the overclocking program to underclock and see if this stops any of the driver issues. Also have you looked at the windows device logs it might have more info for you.
i bought it 4 months ago
yes i tried blowing dust out nothing change
i dont think its a heat issue
can u give me a name of overlocking program
how can i reach to windows device logs ??