To set Win10 to support unsigned USB drivers please follow the instruction below.
· Power OFF the PC
· Reboot your PC and log in as administrator.
Hold down the Shift key while selecting Restart. Restart is located under Power options menu (Windows 8: located under Charms or on the login screen) (Windows 10: located on the Start Menu). The PC will reboot, enabling you to select Troubleshoot.
Select Troubleshoot > Advanced options> Startup Settings.
Click Restart, and when Startup Settings opens, press F7 to disable driver signature enforcement; upon restart, digital signature enforcement is disabled.