In the process of computer startup, you don't have to wait to enter the user login box, press the F8 button on the keyboard, and the system startup item will appear for selection.

Then select, disable digital signature, and start the computer. After digital signature is disabled, the driver can be successfully installed. However, after restarting the computer, the settings will be restored to enable digital signatures. The ban on some computers is one-off.

Then, you can also force the digital signature to be turned off. After entering the system, use administrator and enter bcdedit.exe in CMD Runner. Are you ready? Loading options? DDISABLE_INTEGRITY_CHECKS？ ; Then you will be prompted to disable successfully.

Restart the computer, and the system will always turn off the digital signature by default. The driver installation will succeed.