How to change Windows 7 Welcome Screen

That blue startup screen is hideous. This little hack in the registry allows you to change the screen to a customized JPEG of your choosing:

For UseOEMBackground Value Name

Registry Key:HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System

Just Add and Set the Value Name to 1 (DWORD)

If your Windows Directory is C:\Windows, Add/Put a jpeg file here:

C:\Windows\System32\oobe\info\backgrounds\backgroundDefault.jpg

The  image must be less than 256kb. Just resize your jpeg files using ms paint, Paintbrush or Photoshop.