Enable the Built-In Windows 7 Administrator Account

From the Command Prompt

To enable the built-in Administrator's account by using the Command Prompt  please follow these steps:

1. 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".

When prompted to allow the Command Processor to run, click on "Yes".

BTW, you can also hover over the CMD line and press CTRL + SHIFT + ENTER to invoke the "Run as Administrator" shortcut.

In the Command Prompt window, type:

net user

Note how the Administrator account is there, yet the new user account has not been yet created.

To set the Administrator's account password:

net user *

Then enter the required password and confirm it.

To enable the Administrator's account:

net user administrator /active:yes