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Hi! I am expert Paul R. from Microsoft Windows 10 and also a Windows 10 user like you. I understand that you cannot see the login screen on your monitor. Kindly try the steps below.
- Click on the Power button at the lower-right corner of the Login screen and choose Restart while pressing and holding down the Shift key.
- After booting up the Choose an option screen, click on Troubleshoot > Advanced options > Command Prompt.
- In the Command Prompt window, type the net user administrator /active:yes command and hit Enter key.
- Exit Command Prompt window and click Continue under Choose an option to reboot your computer in the end.
Let me know how it goes.
Regards,
Paul R.