How To Active Administrator Account In Windows

1. Logon to Windows using your normal username and password.
2. Click on the Start button
3. Click on Start Search. 
4. Type, cmd. 
5. Right-click cmd, select 'Run as administrator' from the shortcut menu.
6. Net user administrator passw0rd (Replace password with the actual password string that you have chosen. Press enter the command completed successfully will be displayed.)
7. Net user administrator /active:yes (Press enter the command completed successfully will be displayed.)
8. Switch User, or logoff
9. Logon as Administrator and new Password  (Your password may be different!)