HOW TO OFF DRIVER SIGNATURE/DISABLE DRIVER SIGNATURE Enforcement 

Disable driver signature enforcement
How to Disable driver signature enforcement or How to Turn OFF Driver Signature.
Disable driver signature enforcement [Windows Guide].
Press and hold the Shift key on your keyboard and click the Restart button. Choose Troubleshoot - Advanced options - Startup Settings and click the Restart button. When your computer restarts you'll see a list of options. Press F7 on your keyboard to select Disable driver signature enforcement.