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Normally Windows will not automatically turn off the monitor if the system is waiting at the logon screen. This setting can be used to cause the monitor to be powered-down when not in use as per the default power-saving profile.

Open your registry and find the key [HKEY_USERS\.DEFAULT\Control Panel\Desktop].

To enable power-off on logon screen
Modify the value of "PowerOffActive" and set it to "1".

Modify the value of "ScreenSaveActive" and set it to "1".

Modify the value of "SCRNSAVE.EXE" and set it to "(None)".

Open the key [HKEY_USERS\.DEFAULT\Control Panel\PowerCfg].

Modify the value of "CurrentPowerPolicy" and set it to "0".

Restart Windows for the change to take effect.

		(Default)	REG_SZ	(value not set)
		PowerOffActive	REG_SZ	1
		ScreenSaveActive	REG_SZ	1
		SCRNSAVE.EXE	REG_SZ	(None)

	HKEY_USERS\.DEFAULT\Control Panel\Desktop

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.