In Windows, the built-in administrator account is disabled by default  in all clean installations and upgrades.

In Windows, an Administrator account was automatically created during Out-of-Box-Experience (OOBE) with a blank password.

Enable the Built-in Administrator Account


  • Open Command Prompt and run as administrator 

  • Now type net user administrator /active:yes


  • Now restart the system, you can see the administrator account was enabled


Disabling the Built-in Administrator Account

  • Open Command Prompt and run as administrator 
  • Now type net user administrator /active:no
  • Now your administrator user account was disabled