Microsoft did not implement Driver Signature Enforcement to annoy you. They did is to protect you from installing malicious software. This makes it a little more difficult for Rootkits to be installed on your PC. Be sure you know what you are installing!

The following steps will only last until you reboot your PC.

1. Open Settings by clicking on your Start Screen or hitting the Windows key on your keyboard. Hover your mouse at the bottom right of the start screen until the sidebar appears. Click Settings.
2. On the settings screen, click on Update and Recovery.
3. On the Update and Recovery screen click Recovery.
4. Click Restart Now under Advanced Startup.
   (Your PC will Restart into Advanced Boot Mode for this session only)
5. Choose Troubleshoot from the Advanced Boot menu.
6. Choose Advanced Options from the Troubleshoot menu.
7. Choose Startup Settings from the Advanced Options Menu.
8. Click Restart on the Startup Settings page.
   (Your PC will Restart with Advanced Startup Settings)
9. From the Startup Settings menu choose: 7) Disable Driver Signature Enforcement.
   (Your PC will now fully boot up and Driver Signature Enforcement will be disabled for this session. Once you reboot or power down your PC Driver Signature Enforcement will be enabled.)
10. Install your unsigned driver software. You will still get the Windows Security Alert (just click Install this driver software anyway)

Enjoy your software!