I have a project in Windows Movie Maker from Windows Essentials 2012.  I am running Windows 7 Pro.  When ever I try to save it, regardless of which format is tried, when I get to 5% saved the program stops with a message that "Movie Maker has stopped working" with a prompt to close the program.  I have tried uninstalling/reinstalling.  Have tried repairing.  Have run it in compatibility modes of Windows 7, Windows Vista service pack 1 & 2.