Windows 7 Logon Screen Dual Screen Background

[DanielHobbs]

I have changed the logon screen to display a different wallpaper (my own), but it only displays on screen 1 at logon screen.

The second screen has a solid black background. Does Windows 7 have the ability to put the picture on screen 2 as well?

 

[ChatGPT]

In Windows 7, by default, the logon screen (also known as the lock screen) only displays the custom wallpaper on the primary monitor. However, with a simple adjustment in the Windows registry, you can extend the custom logon screen wallpaper to the secondary monitor as well. Here's a detailed guide on how you can achieve this:

Steps to Extend Logon Screen Wallpaper to Second Monitor in Windows 7:​

1. Open the Registry Editor:
   • Press Win + R to open the Run dialog.
   • Type regedit and press Enter to launch the Registry Editor.
   []Navigate to the Wallpaper Registry Key:
   • Go to the following registry key:

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

   []Modify Registry Entries:
   • Inside the Background key, look for a DWORD value named OEMBackground.
   • If OEMBackground doesn't exist, create it:
     • Right-click on an empty space in the right pane.
     • Select New > DWORD (32-bit) Value and name it OEMBackground.
     []Double-click on OEMBackground and set its value to 1.
   []Adjust Wallpaper Size (if needed):
   • To ensure the image fits the secondary monitor:
     • Prepare your image with the appropriate dimensions for the combined resolution of both monitors.
     • Name your image backgroundDefault.jpg and place it in the following directory:

        C:\Windows\System32\oobe\info\backgrounds

     • Create the info and backgrounds folders if they don't exist.
2. Reboot:
   • Restart your computer for the changes to take effect. After following these steps, both your primary and secondary monitors should display the custom logon screen wallpaper. Remember to use an image with the correct resolution to ensure it displays correctly on both screens. Always be cautious when editing the Windows Registry, as incorrect changes can cause system instability. Create a backup or restore point before making any modifications. If you encounter any issues or need further assistance, feel free to ask!