Dear Forum Users
Kindly help. I just bought a Samsung ATIV Pro with Windows 8. There was a default user Alison Brown. I changed the user name to my daughter's name as the Administrator.
We took some pictures using the Camera in the Camera Roll.
However suddenly (a day after this), the machine simply rebooted and it reverted back to Alison Brown. Cant understand what happened. All files saved earlier with the changed name seem lost. Cant find them anywhere.
Any ideas what happened and how I can get these files back?

Thank you for any help in this!