I have been editing a rather large video clip, and if i try to remove half the clip, windows movie maker will crash altogether. I edit gameplay in WMM because its free and renders in HD. I find that it crashes quite a bit with slightly larger files though.

I highly doubt its due to any kind of not having disk space or enough processing, because i have a BEAST of a gaming computer.

That being said i'm very irritated at WMM. I've been editing a clip thats around 2 hours long, right when i got to the end of editing it, i saved it and the program crashed. I tried to reopen it and remove the clip at the end and then save it, to try to reopen the program and then render it. But upon reopening the program: I'm faced with an entirely blank screen. There's half of the little time bar that shows where you'll play, it says theres 29 items (i do jump cuts) But nothing shows up. The preview window is black, and it says its 0 minutes long and stuff. I'm absolutely livid at this current moment in time. 

I've been editing this particular clip for several hours a week over the course of a month or two for gameplay footage, splitting it up and stuff, and now after wanting to get another part done, i either have to start over, or try to somehow fix this so i can see what i'm editing/successfully render it. Please help.