So, recently I began making book trailers. I just finished one that's polished and I like it, but Windows Movie Maker 2.6 isn't letting me save the file so that I can upload it to YouTube. It keeps telling me "Windows Movie Maker cannot save the movie to the specified location. Verify that the original source files used in your movie are still available, that the saving location is still available, and that there is enough disk space, then try again." In the version I have, the clips have a big red X on them if they've been moved from one place to another, so that's all fine and dandy because I learned from experience not to move the clips. Plus, I've only deleted the MP4 versions of the videos, after I've converted them to WMV's, and that hasn't ever caused a problem with the other two I've saved and uploaded. The saving location is available, as it's 'My Videos' and I haven't even tried to delete it before. And the video needs around 11 MB of space, including that in memory left after saving, I would have 82.66 MB left, so it can't be a memory issue.

The length of the video is 1:41 seconds. Any video I've had before (being 39 seconds and 49 seconds) saved perfectly fine. All the videos are .wmv and the music I'm using (one song) is .mp3, which worked the other times I used it. I've played it and it freezes at certain spots and won't play unless I press play again, but I cleared all of those out and it plays fine now.