How to turn off Driver Signature Enforcement on Windows 8.1 & 10

Step 1
Hold down shift “Restart”
Step 2
Select “Troubleshoot”
Step 3
Select “Advanced Options”
Step 4
Select “Startup Settings”
Step 5
Select “Restart”
Step 6
Wait for screen and then enter “7”
This process will continue to work until the machine is rebooted.