In the earlier Windows versions, there was only one Administrator account and most single users used it as their main account. But Windows 10 / 8 / 7 / Vista, have another Administrator account called as a secret super administrator account. It is hidden & turned off by default, and is similar to the ‘root’ account in UNIX. The use of the Administrator account is being phased out in Windows Vista, and there’s actually seldom a need to use it, instead of another administrator account.
On installation of Vista, the Administrator account is disabled; but if you upgrade from Windows XP and Administrator is the only active local administrator account, then Administrator remains enabled. In this situation, it is placed in Approval Mode, for purposes of UAC. Since it is not subject to UAC prompts and runs with full administrative privileges, it’s rather risky, to run it on a regular basis. Any application could then have full control of the computer.
Activate Windows Super Administrator Account:
There are two ways for activating windows super administrator account.
Way 1: Enable Super Administrator Account through Command Prompt
In the Search field, type CMD.
On the list of available programs, right click the Command Prompt icon and click Run as Administrator.
In the black window, type: "Net user administrator /active:yes"
Then press Enter.
The system should return you with the following message: "The command completed successfully."
If you want to password protect the super administrator account, then use the following commands: "Net user administrator yourPassword & Net user administrator activate:yes". Don’t forget to replace “yourPassword” with the actual password.
Now, exit the Command Prompt and click the Start
Log off from the current account and in the Account window you should now see the Administrator account.
If you want to turn off the Admin account, type: “Net users administrator /active:no”
Way 2: Enable Super Administrator Account through Local Users and Groups
If you are uncomfortable using the Command Prompt, then you can do the same using the Local Users and Groups snap-in. So press “Win + R,” type msc and press the Enter button.
Now, the Local Users and Groups window is opened. Click Users and you will find the user account named “Administrator” in the right pane. As you see, it is disabled by default.
In the window to the right, click on > Properties and next to "Administrator", uncheck "Account is disabled".
If you want to secure your Admin account with a password, then right click on the user account and select the option “Set Password”.
As you can see, the process to enable the super admin account is simple, but be careful while using this account and disable it when you’ve finished using it.