hi frnds i tried this way but i cant get it .after trying so much i got 100% result.thatis after installing installing Windows 7 u get stander vga
drivers then u directly install only[only] this
driver [by going through computer managment>displaydrivers>properties>update
driver>locate this
drivers on hard drive after unziping .]and reboot after installation is completed.
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2.drag cmd prompt on to the desktop . start run as adminitrator >type Bcdedit.exe /set nointegritychecks ON
3.u can check in dxdiag>display for conformation