Disable logon Image

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System

In right-side pane, create new DWORD DisableLogonBackgroundImage and set its value to 1

Disable Login Screen and enter console mode

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\TestHooks

In right-side pane, create a new DWORD ConsoleMode and set its value to 1