dell 5521 graphic card problem

i have dell 5521 with hd 7670m gpu card ......when i clean install windows 7 then after downloading drivers from dell official website i install first chipset driver then after intel hd graphics driver 4000 wont intall and gave me error "system does not meet minimum req" them after i install driver for hd 7670m it worked perfectely and it  automaticallly installed the driver for hd graphics ....now i am facing problem that my catalyst control center and hddriver properties wont open and when i click switcable grahics it crashes....please help me on this issue. 

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RE: dell 5521 graphic card problem

Did you install the dot.network framework?  It is required for the AMD Catalyst control center to work.

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