I wanted to get spiffy with my new Windows 8 and tried renaming my computer to "myName-PC" instead of what I originally put when I installed windows 8 which was just "myName".
It asked me to restart my computer and I did. It then tried to login into "Other User" account instead of my live account. It said wrong password, so I switched and entered my password for my live account. Did another restart and same problem. Pretty obvious it was from the computer name change. I changed it back to the original computer name and it's sort of fixed. Now it says "Logging into 'Other User' " for about 2 seconds and then switches to "Logging into myName" - which is my live account.
Not a big deal now but I don't know where this "other user" is coming from. I checked and this is the only account of this computer and the guest account is disabled.