How to do black screen when updating win8.1

The black screen appears during the update win8.1 because your graphics driver is not compatible with win8.1. At this time, we should update the graphics driver, but the black screen can't get in. How can I update the graphics driver?

1

Enter safe mode

Press and hold F8 while booting, then select safe mode.

2

Uninstalling the graphics card driver

Normal mode entry will be black, but the security mode will not. At this time, open the device manager to delete the graphics driver.

3

Then change to normal mode driver

Download and install a graphics card driver that is compatible with win8.1