First, enter the WIN10 system security mode:
1, boot into the system long press the power key off, repeat about 3 times;
2, this boot should be able to appear advanced recovery interface;
3, click the "Troubleshooting" option, and then click "Advanced Options", click "Start Settings", click "Reboot", select the installation mode.
4, into the safe mode, if the black screen before the installation of what can be in Safe mode to uninstall the software removal, if unsure, can be a clean boot, clean boot operation steps as follows:
1 Press "Win+r" to open the "Run" window, enter the Msconfig command and press ENTER, pop-up System Configuration dialog box.
2 Switch to the General tab, click Selective Startup, and then click to clear the tick above the load startup item.
3 Switch to the Services tab, click the Hide all Microsoft service, and then click Disable All.
4 Switch to the "Start" tab, click "Open Task Manager", click the startup item, and then click Disable.
5 Click OK to reboot the system after saving.