Always use custom logon background

This policy setting ignores Windows Logon Background.This policy setting may be used to make Windows give preference to a custom logon background. If you enable this policy setting the logon screen always attempts to load a custom background instead of the Windows-branded logon background. If you disable or do not configure this policy setting Windows uses the default Windows logon background or custom background.

Policy path: 

System\Logon

Scope: 

Machine

Supported on: 

Windows Server 2008 R2 and Windows 7

Registry settings: 

HKLM\Software\Policies\Microsoft\Windows\System!UseOEMBackground

Filename: 

Logon.admx