Win8.1 update when the black screen how to do

First, may be the reason for the graphics card driver

1, you can try to prohibit some useless graphics card driver problem will be solved. Or update to the latest graphics card driver. It is recommended that you use the housekeeper software to disable some startup items of the graphics card to solve this problem.

2. Enter safe mode - drive with the appropriate old version - disable automatic update of the driver.

3, it is recommended to uninstall the graphics card driver, and then re-drive the wizard to install the driver.

Second, account problem

Enter safe mode, create a new account, change account login try

Step: Keep pressing F8, until you choose safe mode After entering, control panel, user, new user. . .

Tips: Xiao Bian still advises everyone to use win7 for a while, after all, win8 just listed, certainly the same as the case of win7 that year, there are many problems. Wait a while, wait until it matures, then upgrade.