Change Windows 7 Logon Screen Using Registry

Steps to Change Windows 7 Logon Screen

1. Press Windows Key + R to launch Run. Type REGEDIT and hit enter.
2. Now navigate to,

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
Change value of OEMBackground to 1.

or

Alternatively you can download the Registry file from here.Extract the file and double-click on the file to enable this feature (Alternative method: right-click, select Merge).
4. Now navigate to C:\Windows\System32\oobe, create folder “info”, double click it and create another new folder “backgrounds”.

5. Now place your desired picture inside logon file into C:\Windows\System32\oobe\info\backgrounds. In my Windows 7 I use Alienware themes so changed Windows 7 Logon Screen with Alienware picture.

6. Rename the file to backgrounddefault.jpg. (Please NOTE: Images must be less than 256kb in size).
7. Press Windows Key + L to view your customized Logon Screen. Else Reboot your Windows 7 to applychanges.