Are the sign in options completely gone?
Please open the Windows Recovery environment using either of the steps below:
On the Lock Screen, Press and hold the Shift key. Then, click the restart button on the lock screen located at the bottom right situated in the Power menu, to open the Windows Recovery options.
If you cannot reach the Lock screen or start your computer, restart your PC two times when the boot screen is shown. If your PC has no restart button, press and hold the Power button until the computer shuts down. Do this twice.
On the third time, windows should open Windows Recovery options automatically.
In the Windows Recovery menu,
Select the Troubleshoot option.
Then, select Advanced Options.
Click Startup Settings as the next step.
Click the Restart button.
Click five or F5 to Start the computer in Safe Mode with Networking.
Let me know if Safe Mode works.