The method to start driver signature enforcement is as follows:

Open the CMD command prompt window with administrator rights (required) and enter the following command line:

bcdedit.exe -set loadoptions ENABLE_INTEGRITY_CHECKS.

How to disable driver forced signature under Windows 8 system:

Keyboard keys [Win]+[C] call up the system’s Charm menu - Settings - Change computer settings - - General - Advanced startup (restart immediately) - Troubleshooting - Advanced options - Startup settings - Restart, then wait for the system to load itself, you can enter the advanced startup menu interface, see "Disable driver signature enforcement" ”, just select it. It was successfully disabled.