You Can Customize Windows 7 Logon Background Officially
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Leaked Windows 7 Build 7057 has many new changes as compared to its ancestor builds 7000, 7048 etc. We have already noted some changes like set of new Windows 7 Wallpapers, New User account pictures and most interesting you can remove many windows 7 component like Internet explorer 8 etc.
Here is another great finding by Rafael Rivera from within windows, you can now officially change Windows 7 Build 7057 login UI background. Windows 7 now supports the ability to load images into the background of the login screen without the use of third-party software or manual hacks.

Steps to Change Windows 7 Build 7057 Logon Background Image
1. press win+r key and Type Regedit at run prompt
2. Locate following registry key
HKLM\Software\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
3. Now in right-side pane, change value of OEMBackground to 1.
4. Now place your custom image in %windir%\system32\oobe
5. Create a new folder info and background within newly created info folder
Folder path should look like this %windir%\System32\oobe\info\backgrounds
6. Now place your desired logon wallpaper within this background folder with file name as backgroundDefault.jpg
Images Name with resolutions
backgroundDefault.jpg
background768×1280.jpg (0.6)
background900×1440.jpg (0.625)
background960×1280.jpg (0.75)
background1024×1280.jpg (0.8)
background1280×1024.jpg (1.25)
background1024×768.jpg (1.33-)
background1280×960.jpg (1.33-)
background1600×1200.jpg (1.33-)
background1440×900.jpg (1.6)
background1920×1200.jpg (1.6)
background1280×768.jpg (1.66-)
background1360×768.jpg (1.770833-)
Please NOTE: Images must be less than 256kb in size
The backgroundDefault.jpg image is loaded and stretched-to-fit when a resolution/ratio specific background cannot be found.















Reader Comments
it really looks great & great trick.
how about posting links to some sample images as shown in the screenshots?
No HKLM in Reg on Win7 7057 x86, only HKEY. Search for specific file did not turn up anything
Does your computer boot?
Thanks for the write up!
~win 7 fan
This worked for build 7057, but it doesn’t seem to work in build 7068. Can anyone confirm this?
Just tried it on 7068. works great.
Yes, it works again, made a typo :-/
has anyone tried it on win7 beta 7000 x64????
We just released a free program that does it for you. It will reduce the image size to fit into the 256kb limit, and take care of all the registry changes:
http://www.intelliadmin.com/blog/index.php/2009/07/change-the-windows-7-logon-background-free-utility/
Just tried it on 7100.
Step 4 is not needed.
Step 6: the files with the resolution in the name do not work (background1600×1200.jpg for ex) .
I created yet another logon background changer :
http://www.julien-manici.com/windows_7_logon_background_changer/
This one has a nice WPF based UI, and needs admin rights only once to change the logon background (great for users who like to change their background often). Works on Windows 7 RC1 and RTM (final version).
Cool. Do you know of a way to change the size of the user picture on this screen? It’s decent size when you have only one user but with two users they get really small. Maybe another handy utility?
yeah the steps work on windows 7 rc and a small changer available for download at http://www.murgee.com allows to select any jpg file and set it as windows 7 background without any fuss
works like a charm..
thx