The true administrator account is the account with highest level of rights and permissions in Windows PC. In Windows XP this account can be seen while logging in to PC in safe mode, but starting from Vista the administrator account is not active and even in safe mode it is not visible. First we need to enable it in order to be able to see the and work from this account. The following methods will show how to enable and disable the true administrator account.

Method1: Elevated Command mode:

In Windows Vista and Windows 7, even if you are logged in as an user with admin rights, if you open a command window by just typing cmd it will not have access to many command that requires changes in some core system properties. So we need to run this command window with administrator rights. Do this for running command window with admin access (also called elevated command mode):

- Click on Start  and type cmd in the search box.

- From the result window, right click on Command Prompt and select Run as administrator.

Elevated command mode

- When command window opens, type the following command:

net user administrator /active:yes and hit Enter.

You should see a message that the command completed successfully. Log out of the current account, and you’ll now see the true Administrator account as a choice.

To disable the built-in administrator account, repeat the above steps and type the following command:

net user administrator /active:no and hit Enter.

Method 2:  User Access Control

1. Click on Start .

2. In the Search box, type lusrmgr.msc and press Enter.

NOTE: You could also type Control userpasswords2 instead,  since it takes you to the same window. under step 4.

3. In the left pane, click on the Users folder.

4. In the middle pane, right click on Administrator and click on Properties.

5. To Enable the Buit-in Administrator Account -
A) Uncheck the Account is disabled box.
B) Go to step 7.

6. To Disable the Buit-in Administrator Account -
A) Check the Account is disabled box.

7. Click on OK.

8. Close the Local Users and Groups window.

9. Log off, and you will now see the built-in Administrator account log on icon added (enabled) or removed (disabled) from the log on screen.

Note:

When the built-in administrator account is enabled, it will not be having any password, so any can login to the PC and gain full access. So as soon as you enable this account, provide a password or disable the account after you performed the required task with administrator account.