2. Enter Update and Security, and then click Restore in the sidebar on the left.

3. Find the advanced startup, click below to restart immediately (it will restart directly at this time).

4. Restart the backward interface and click Troubleshooting.

5. Enter the advanced options.

6. In the startup settings, click Restart in the lower right corner.

7. Enter the interface and press the keyboard F7 to disable the driver signature.

8. You can use the keyboard after that.