Windows 7 user account doesn't show up

Hi! Recently I bought Toshiba Sattelite C670-1DJ and today I accidentally unplugged my AC cable. So I started it and it started computer with "Starting your computer for first use" or something like that.
It logged in temporary Administrator account and when I tried to switch to my account, it wasn't there, however there is my folder in C:/users.
I tried to reboot computer and edit registrs(I am a begginer in Windows, so i didn't try to do something extraordinary) but nothing help, i cannot log in my account.
Please help, I need to get in my account, there are few specific programms that won't run.

Have you tried restoring it?