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Videocard: GeForce GT 840M
Processor: Intel Core i5-4210U
Mainboard: Intel Lynx Point-LP
Memory: DDRIII - 8GB / 1600 MHz
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Default 11-01-2012, 06:15 | posts: 315

Originally Posted by orionatus View Post
Driver loads properly if system is shut down from "signed drivers off" mode but when you restart Windows you will end up with vga driver.
Ys 64 bit System has this odd problem..

(Make Sure you Disable UAC Before proceeding)

Download > Driver Enforcement Overrider. Link >(

Use the Sign System file option in the application to sign the 'atikmdag.sys'
(provide the correct path to the atikmdag.sys when asked)

After signing Follow the Commands described by MichaelT:

Start a command Prompt with Admin Rights, and execute these commands:

bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
bcdedit -set TESTSIGNING ON

restart the system normally..
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