2. In the opened local group policy editor window, we find: user configuration-management template;

3. In the expansion item of the management template, find: system, expand;

4. In the extension of the system, we find: driver installation, and then left-click: driver installation;

5. In the right window corresponding to the driver installation, we find: code signing of the device driver, left key: code signing of the device driver;

6. In the opened device driver code signing window, we select Enabled, and there are Warning, Blocking and Ignore in the drop-down box of options.