Windows 7 system has a default administrator account that is created during the installation of Windows 7. Log as built-in admin account you will have complete access to the computer and can make any desired changes such as reset forgotten Windows 7 password for other accounts and will not be prompted by UAC.
By default, the built-in administrator account is named Administrator, and is disabled. In this article, we will introduce 3 methods for you to enable or disable the hidden/built-in elevated Administrator account in Windows 7.
NOTE: An Administrator account with a blank password is a security risk. If you enable the built-in Administrator account, it is recommended to create a password for it to help keep it secured.
Method 1: Enable or Disable Built-in Administrator through Computer Management Console
You can easily enable Windows 7 built-in administrator through Computer Management Console. But this method only applies to Windows 7 Professional, Ultimate, and Enterprise editions.
Right-click on the Computer icon on your desktop and select Manage as shown in the image below.
The Computer Management screen will now open. Expand the System Tools folder, then the Local Users and Groups folder, and finally single-click on the Users folder. In the right hand pane you will now see a list of the accounts on your computer, including the Administrator account.
Right-click on the Administrator account and click on the Properties menu option and the Administrator Properties screen will now open.
To Enable the Built-in Administrator Account in Windows 7, uncheck the Account is disabled box, click on OK.
To Disable the Built-in Administrator Account in Windows 7, check the Account is disabled box, click/tap on OK.
Close the Local Users and Groups window.
Method 2: Enable or Disable Built-in Administrator through Elevated Command Prompt
To enable the built-in Administrator's account by using the Command Prompt, you can follow steps below:
Click Start and type CMD, then press Enter. It is best to run the Command Prompt as an Administrator. To do so, right click CMD and select "Run as Administrator".
To Enable the Built-in Administrator Account in Windows 7, copy and paste the command below and press Enter.
net user administrator /active:yes
To Disable the Built-in Administrator Account in Windows 7, copy and paste the command below and press Enter.
net user administrator /active:no
Close the elevated command prompt.
Method 3: Enable or Disable Built-in Administrator through Local Security Policy
Press the Windows + R keys to open the Run dialog, type secpol.msc, press Enter.
In the left pane, expand Local Policies, and click on Security Options.
In the right pane, right click on Accounts: Administrator account status and click on Properties.
To Enable the Hidden Built-in Elevated Administrator Account, select (dot) Enabled.
To Disable the Hidden Built-in Elevated Administrator Account, Select (dot) Disabled.
That's for how to enable or disable the built-in Administrator account in Windows 7. For Windows 8/8.1, you can read another article - how to enable or disable the hidden built-in Administrator account in Windows 8 and 8.1.