① Use the key combination of Windows+C to call up the setup menu of Windows 8. 1 operating system → Setup.

② Click → Change computer settings in the pop-up interface.

③ Computer Settings → Update and Recovery

(4) Special attention should be paid here:

The menus of Windows 8 operating system and Windows 8. 1 system will be different here.

Change the computer settings → General → Advanced Startup (restart immediately) → Troubleshooting → Advanced Options → Startup Settings → Restart, and then wait for the system to load itself and enter the advanced startup menu interface. When you see "Disable driver forced signing", just select it. Disable it and it will succeed. ?