I am using Hp Envy 4 1002 TX laptop.It is having 2 graphics card- Intel HD 4000 and ATI Radeon 7670M graphic processor.After the installation of AMD Display driver my laptop restarts many times with a message SYSTEM_THREAD_EXCEPTION_NOT_
HANDLED(atikmdag.sys). When the system works normally after the restart the AMD display driver disappears from my device manager.And whenever the AMD display driver is detected it again restarts.
When I booted my system in safe mode it is showing both graphics cards. I tried installing almost every driver softwares released in past 2 years,but did not solve my problem. I tried these things in windows 7,8,8.1 and 10. Please give me solution for my problem.