Friends main window 7 use kar raha hun pr kuch din ya theek chalti ha us ky bad slow hoti ha phar boot he ni hoti ma ny us ko dobara kia ha lekan phr b wo he mishla a raha ha boht muskal sy ma apna pc on karta hun plz koi help kary ya mujy pic ky zery betawo ky es ko kisy install karun...THANKS