Enable Built-in Administrator Account in Windows

First you’ll need to open a command prompt in administrator mode by right-clicking and choosing “Run as administrator” (or use the Ctrl+Shift+Enter shortcut from the search box).

Note that this works the same in all versions of Windows. Just search for cmd and then right-click on the command prompt icon in the Start menu or Start screen.

If you are in Windows 8.x or 10 you can right-click on the Start button and choose to open a command prompt that way.

Now type the following command:

net user administrator /active:yes

You should see a message that the command completed successfully. Log out, and you’ll now see the Administrator account as a choice. (Note that this screenshot is from Vista, but this works on Windows 7 and Windows 8 and Windows 10)

You’ll note that there’s no password for this account, so if you want to leave it enabled you should change the password.

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