Did you accidentally lock your administrator login by attempting the wrong password too many times? Do you need to re-enable the account, and reset the password? Try the following :
- Hold SHIFT and click the power icon on the lock screen. Continue holding SHIFT and click on “Restart”. This will boot the machine into Troubleshooting mode
- Select “Advanced Options” on the “Troubleshoot” screen
- Select “Command Prompt”. This will open a command prompt window.
- In the Command Prompt window, type the following command :
net user Administrator /active:yes - Now that the Administrator account has been re-enabled, you can set a new password by typing this command :
net user Administrator <type your password here> - Close the Command Prompt window
- Restart the computer
- Login with the Administrator account with the password you just set