Movie Maker crashes after save movie. Its gives a different Fault Module error each time and gets to a random completion % each time.

Regards,

Movie Maker crashes every time I try to save a movie. It will run up to a random finish percentage and then error out with this:

Problem signature:
  Problem Event Name: APPCRASH
  Application Name: MovieMaker.exe
  Application Version: 16.4.3528.331
  Application Timestamp: 533a401b
  Fault Module Name: mfh264enc.dll
  Fault Module Version: 6.1.7600.16385
  Fault Module Timestamp: 4a5bda36
  Exception Code: c0000005
  Exception Offset: 0002fd95
  OS Version: 6.1.7601.2.1.0.768.3
  Locale ID: 1033
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

Every time it crashes at a different spot. sometimes it gets farther along than other times. I have this problem with almost every movie editor I use on this machine. Im using Windows 7 Im fully up to date on ALL drivers. I tried using a different codec pack, Ive repaired Essentials 2012 as well. I tried pulling out different parts of the movie and making it shorter. I was able to get it to complete by pulling out everything except about 10% of the full movie.

My computer:
Intel I7 - 3770 CPU @ 3.40GHz 3.40 GHz
RAM: 20.0 GB 16 usable

64 bit OS
Windows 7 SP1 Home Premium
 I'm beginning to think its a hardware issue but I wanted to try you guys as a last ditch effort. 

Please help.