Try and find the old version of Windows Movie Maker, I'm sure you can get legally. It's kind of like the MS Paint of picture editing: It's plenty powerful to do most of the things you need to do that aren't creative or polished. In Paint it'd be like, cropping something, making a box around something, adding an arrow to a picture, resizing something, etc. In Windows Movie Maker it'd be like, sequencing several clips into a continuous movie, adding titles, subtitles, music, removing audio from a clip, things like that. Aaaand both MS Paint and Windows Movie Maker are both equally useful when it comes to trying to do something that looks legitimately good or professional. That is to say, almost completely useless. Nice looking things can be jerry-rigged, but it requires having actual knowledge about how to put something together rather than being an intrinsic element of the program, and even then it's an uphill battle that more expensive software would only make easier (but in many cases, there are just things that the cheaper program straight up can't do or even work around to do, think content aware-fill in photoshop or keyframe effect editing in Premiere)
But yeah, really try to find the original Windows Movie Maker, the one that came with XP, because Windows Live Movie Maker in W7 really really blows.
