windows 7 changed my account to a guest account

This is  the process I performed on 3/18/2012 to fix my user account in windows 7.

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windows 7 changed my account to a guest account
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boot into safe mode (hit F8 many times while booting)
log in as administrator
create a desktop shortcut to cmd.exe
right click, run as adminstrator
type in the following two lines.
net user administrator mynewpassword
net user administrator /active:yes
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reboot
if autologin is enabled, logout.
login as administrator, use "mynewpassword" for the password, no quotes.
control panel/user accounts/change user account control settings/select NEVER notify. click OK.
create a desktop shortcut to cmd.exe
right click, run as adminstrator
from the c:\windows\system32\> prompt, run "control userpasswords2" without the quotes
check the box "users must enter a name and passwords to use this computer"
click 'apply' button.
select the user that turned into a guest acct. select properties button. group membership tab.
select adminstrators.
logout, now login with your account.
all should be fixed.