WIN8 system uses dual graphics card after the boot on the black screen is what is going on?

WIN8 system uses dual graphics card after the boot on the black screen is what is going on?

The workaround is as follows:

1, the hard drive in other computer installation completed (is the system installed in other computers, in exchange for now this computer to use)

2, dual-Display this boot to the black screen;

3, press the Win+u start reading screen;

4, win+d into the desktop;

5, win+e open My computer;

6, according to voice prompts to find a computer;

7, the context menu button into the management;

8, according to the voice found set and disabled;

9, reboot, it's done.

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