Interactive logon: Do not display last user name

This security setting determines whether the name of the last user to log on to the computer is displayed in the Windows logon screen.
If this policy is enabled, the name of the last user to successfully log on is not displayed in the Logon Screen.

If this policy is disabled, the name of the last user to log on is displayed.

Policy path: 

Computer Configuration\Windows Settings\Local Policies\Security Options

Default: 

Disabled

Supported on: 

At least Windows XP SP2, Windows Server 2003

Registry settings: 

MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\DontDisplayLastUserName

Reboot required: 

No