How to test my build on a Windows RT 8.1 Surface

I am trying to test my game on a tablet i have. I am using Unity 4.3, on a pc with Windows 8.1 , and my tablet has Windows 8.1 RT.

I already paid the license to be a developer of Windows, but i cant understand how to test my build on the tablet. I already have on mi pc VS 2013, and make the build. I have 2 folders and the Solution of the game.

Thank u in advance !

See Unity - Manual: Deploy a UWP application.

Thank u graham, but that didnt solved my problem.