It just wasn't going to come back up. Something went terribly wrong. Used Advanced recovery Command Prompt to robocopy off files under users. holy heck, there's a ton of Junk this systems keeps that clearing browser temp files just doesn't clean up. It's possible a manual restore of Winlogon.exe or Csrss.exe would have fixed this... with the dirt on this system I decided to go the RESET route and totally clean house. I hope everybody's updates go better than this however, I did update a couple other Surfaces without issue.