The Surface RT comes in two different models, a 32GB and a 64GB variant with a $100 price difference between them. You might have noticed that the Surface also includes a micro SD card slot on it and many of you might have figured that you can install your apps and videos and such on to your SD card and save some money since a 64GB SD Card is only $50.
Not so fast however, like many other mods, Microsoft hasn't made any easy provisions for installing these apps on to your SD card and you're going to have to do a bit of hacking around to get this working. Thanks again to XDA forum member tamarasu, he's discovered the location in the Windows registry which controls where downloaded applications are installed to. It's a good thing Microsoft has stuck to it's registry system for Windows RT, a great many hacks have come about due to fiddling around in the registry!