What to do when there is a black screen during update win8.1

Update win8.1 in the process of black screen is because your graphics driver is not compatible with win8.1, at this time we should update the graphics driver, but the black screen can not go in, how to update the graphics driver?

1

Enter Safe mode

Press and hold F8 while powering on, and then select Safe Mode.

2

Uninstall video Driver

Normal mode entry will be black screen, but safe mode does not, at this time in the open Device Manager to remove the graphics driver.

3

Then switch to normal mode driver

Download and install a video driver that can be compatible with win8.1.