WIN8 system has been turned on black screen only the mouse cursor is flashing the reason

The specific methods are as follows:

1, now most computers have dual graphics cards, is likely to be the problem of graphics cards, then restart, someone will ask, how to restart, simple and rude effective is to press the power button off, and then boot, may have some computer press the power button is sleep, then the long press it, forced shutdown until the flameout. According to different computers, after the boot, repeatedly press the keyboard keys F2 or F12 wait, into the BIOS settings menu;

2, when the boot, press F2, enter the BIOS menu. First see the Computer Information menu bar, including computer model, BIOS version, as well as CPU, memory, hard disk, optical drive and other major hardware information;

3, with the left and right arrow keys to switch to the configuration menu bar, such as the picture is the hardware configuration settings. Mainly include: time, date settings, wireless network card, hard disk interface mode, video card, power consumption beep, Intel Virtualization Technology settings. The relevant details are set as follows (in the figure, AHCI is written as Achi and is hereby corrected);

4, graphics card settings in the configuration interface, with the upper and lower arrow keys to specify options to: Graphic Device;

5, then press the keyboard on the ENTER key and up and down direction keys, the Graphic device default settings swithable Graphic modified to another Graphic, may be discrete Graphic or Uma Graphic, Don't choose swithable anyway. Finally, according to the bottom of the screen prompts, press F10 or other keys, Save and Exit. Then wait for the automatic reboot to take effect.