I am not sure if there is a coinciding issue (and there most likely is since I have not found any documented occurrences of this elsewhere), but here is what I know. A family member mentioned that their PC out of nowhere began bringing them to the login screen instead of directly into Windows. Then when clicking the button to login, it would appear to be working, but then immediately logoff taking them right back to the screen. After doing some research, I found this site http://www.housing.hawaii.edu/resources/support/winlogoff.htm and quite a few others saying that the likely culprit was either this userinit.exe file was missing, or a registry entry was pointing to the wsaupdater.exe instead of the userinit.exe. After entering the recovery console and performing the recommended actions, I unfortunately found that the issue remained. I then realized I had simply assumed because everyone else said it would, that I could not log in using safe mode either. This was not the case, I got in no problem. I then remembered the owner of the PC saying that they recently installed AVG, so I removed the application while in safe mode, restarted and everything is now back to normal. If anyone else is experiencing this problem, I hope this helps or if anyone has any insight as to why this occurred, please chime in.