Amd Radeon 8730m HD Proplem

Hi,

My laptop is inspiron 15r 5521
i7.1T.8 Ram , My Video Card Amd Radeon 8730m Hd
And the service tag is :
My Windows : 8 x64

I Had been trying for a month to fix this proplem and I always failed
I tried to put the service tag in this site and download the drivers And install it when I run a game the Blue screen appears With many errors
Like : video scheduler internal error and 0x000001a and many errors
please I need help