It is in fact so that the first program start-up, confuses the inexperienced users, when you download the Program from Internet! This ist the Windows 8.1 SmartScreen protection !
For example, when download a program that does not pass the SmartScreen test! SmartScreen brings confusing message on the screen.
If you click on OK button, the program execution is terminated.
But if you know the Software, Software-Page or the Developer, click "More Info" (... see Image-1 Arrow-1)
and click "Run anyway" (... see Image-2 Arrow-1)
See also: ... How to customize Windows Smart Screen in Win 8.1 and 8 (turn-off, disable)!
FAQ 214: Updated on: April 28th 2014 10:47