Movie Maker Error

So I was the video guy for a concert and was using Windows Movie Maker for editing.

Then I opened my wlmp file and the playlist was empty, but the preview screen indicated that there was an 1:1:05 of video, but when I try to play it I get a black or grey screen, I tried saving the video multiple times, some times it saved but had a black section in the middle, other times it says a video file might be corrupted, I also tried moving all the video file to a different computer but I had the same results, I also tried: System Restore, updating graphics driver, verifying all video files, virus scan, not sure what to do.

Here's a link to the wlmp file in google drive: https://drive.google.com/file/d/0B1pUo16NSGSNMVdvdDNfTGc1bHM/view?usp=sharing

Here my basic PC specs:

Dell Vostro 1520

OS: Windows 7 Professional SP1 32 Bit

RAM: 3 GM

HDD: 250 GB

Windows Live Essentials 2012

15 inch screen

Any help would be appreciated.

Thanks!