If you receive this error message above while attempting to install the Speedy Dialer Pro onto your Windows 8 computer use the steps below to disable the Windows 8 driver signature enforcement so you can install the driver.
Move your cursor to the right of the screen to access the Charm Bar and choose: Settings
While holding the Shift key down on your keyboard click: Update and restart (if Update and restart isn’t an option, just choose Restart)
Choose: Advanced Options
Select: Startup Settings
In this next screen; using your keyboard choose number 7) Disable driver signature enforcement and the computer will begin to restart.
Once the computer finishes rebooting, you should now be able to install the driver for Speedy Dialer Pro.