|It sounds like it's reverting back to factory defaults on boot (similar to what Deep Freeze and Steady State are designed for).|
Can you post the contents of your "boot.ini" file? This could be helpful in diagnosing the problem.
Check the "Processes" tab in "Task Manager" to see if either Deep Freeze or Steady State are running on your machine. If so, we can help you disable it.
Please let us know if you found someone's advice to be helpful.