How to change the Windows OEM Login Screen
First, a check is made to determine if the customization functionality is enabled or not. More precisely, a DWORD value named OEMBackground in the following registry key is checked.
Open Registry Editor and then navigate to the following path
Its data defines whether or not this behavior is turned on, i.e., 1 for enabled, 0 for disabled. Double click on OEMBackground DWORD to see its value.
However, it is possible that value may not exist by default, depending on your system. As this is OEM feature images are derived from windir%\system32\oobe\info\backgrounds. Like the registry value, this folder may not exist by default.
3rd party freeware utilities to change login UI screen
1] Logon Changer: This utility lets you change the Windows 7 logon screen background. It provides an easy way to customize the logon screen background with just a few clicks. Simply download the free application, run it, and click Change Logon Screen. 2] LogonUI Background Changer is a small tool from Codeplex, which can help you to change the LogonUI background image in Windows 7, by modifying the Registry. 3] This Windows Logon Changer Tool will allow you to customize the logon screen for Windows 7 without touching the Registry at all. 4] This Windows Background Changer, is WPF based, it’s a nice technical demo of Windows Presentation Foundation capabilities for those interested in WPF. It requires a decent GPU for the 3D animations to run smoothly. It runs fine with my Radeon HD 3200 on my laptop computer, but it should also work with lower-end graphic cards, albeit slowly. 5] Windows Logon Screen Rotator is a free application that will change the logon background image to an image of your choosing and also at a time you select. Current options include each day, each logon, and each computer lock. 6] Windows Logon screen editor, is a tool developed by Deviantart user which can quickly set your wallpaper as the logon screen background. 7] Thoosje Windows Logon Editor also comes with a library of free login screen backgrounds, Like high windows 3D logos and various other Themes like Movie, Cars, and many more. 8] Windows Login Changer lets you add a collection of pictures and change them at a specified interval. Images formats supported: Bitmap (BMP), Portable Network Graphics (PNG), Joint Photographic Experts Group (JPG), and Graphics Interchange Format (GIF). 9] Logon Screen Utility needs installation and integrates itself with the Windows desktop right-click context menu. That’s it.
