Enable/ Disable the built-in Hidden Administrator User Account
Windows 8.1, 8, 7 & Vista


WARNING: Do not use the "Administrator" user account itself when deactivating the account

Bring up an elevated admin CMD prompt -
- Windows 7 & Vista - START | type cmd.exe into the start search box | right-click on cmd.exe | select "Run as Administrator"
- Windows 8.1 & 8 - Press WIN +X keys | select "Command Prompt (Admin)"

Type or paste the contents of the code box into the CMD screen:

Activate the Hidden Administrator account
Code:
net user administrator /active:yes


Log off your user account and an account named Administrator will be waiting for you at the log on screen.



Deactivate the Hidden Administrator account
Code:
net user administrator /active:no