Enable Or Disable The Windows 7 Administrator Account

The easiest way to enable or disable the Windows 7 build in administrator account is from the command line. Open a command prompt with administrator rights. This is done by right-clicking on the command prompt icon in the Windows 7 start menu and selecting Run As Administrator from the available options.To enable the Windows 7 administrator account: net user administrator /active:yes

To disable the Windows 7 administrator account: net user administrator /active:no

To change the password of the Windows 7 administrator account: Net user administrator password

An alternative would be to enable or disable the Windows 7 administrator account using the Local Security Policy option. You can open the Local Security Policy by launching secpol.msc from the run box.

You find the option under Local Policies-> Security Options. Just change the setting Accounts: Administrator account by double-clicking the entry.