Digital signature is an important symbol of driver security, and the developer of the driver uses the private key to sign it to ensure the integrity and reliability of the driver.

When Windows cannot verify the digital signature of the driver, the driver file will be damaged and tampered with, and the driver is not obtained from official and trusted sources. Windows will prevent the installation and running of drivers to protect the stability and security of the system. In order to solve this problem, users can download the driver again and disable the method of forced signature of the driver.