How does one enter safe mode when Windows 10 system F8 does not work and cannot be turned on ?, Win10f8

How does one enter safe mode when Windows 10 system F8 does not work and cannot be turned on ?, Win10f8

By default, win10 cannot enter safe mode. What should I do when I start a black screen? The following describes how to forcibly enter the security mode.

In case of shutdown, press the power-on key and wait until the logo () appears. At this time, press the power-on key to force shutdown.

Reboot again, the logo appears, Force Shutdown again, repeat three times until "Preparing for Automatic Repair" appears, such:

At this time, it is almost successful! The system enters "diagnosis ...",

Until "Automatic Repair interface" appears, click "advanced options"

In this case, select "Troubleshooting" to see the figure.

Click "advanced options" on this page"

There are many options. Select "Startup Settings" in the middle of the right"

In this step, click "restart" to view the figure.

The computer restarts automatically. When the following figure appears, select 4 to go to "security mode ",