How to Customize the Windows 7 Logon Screen
Windows 7 makes it easy changing the Windows logon screen.

1. Go to Start Menu and type Regedit, to open Registry Editor.

2. Navigate to following registry key:

Code:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background


3. Double-click the OEMBackground DWORD value.

4. Set value data of the key to 1.

How to Customize the Windows 7 Logon Screen KBQl1Mf

5. Select a background image for Logon Screen with size less than 256KB in size (Use of Image Resize software like VSO Resizer can help)

6. Copy that image into the C:\Windows\system32\oobe\info\backgrounds folder.

7. Rename the image to backgroundDefault.jpg

8. Reboot, and now your logon image would have changed.