Cropping (resizing the resolution) of a video?

So the other day I recorded a train trip on my phone for a school project, most of it was in landscape but a few of the most important videos are in portrait resolution. In the video I have created it seems a little "dodgy" that it switches between wide screen and a constricted screen. If I want to recorded these again I need to pay for another train ride and I'm pretty broke at the moment...
Is there any way, without downloading a driver or program, I could permanently zoom into the video to make it seem landscape, this video needs to fit into Windows 8 Movie Maker.

Any ideas? Thanks