Hey guys. We can change Change background login Windows vista, seven with " Tuneup styler " . But with Build 7955, " Tuneup styler " not work. Below is guide :
1, Download Takeownership : http://www.mediafire.com/?7wy8gf66ujdx0ex and run it.
2, Then go to folder : " C:\Windows\Resources\Ease of Access " and Take Ownership file " basic.theme "
3, Open file " basic.theme " by Notepad and edit :

SetLogonBackground=0 -----> SetLogonBackground=1

4, Save and Reboot your computer.
I hope it nice work.

nice tuto
gonna try t
BUT it could be a better tuto if you included some pictures
thanks

I'm afraid this didn't worked for me and ultrawindows, we tried random ways, and nothing works.

Never worked for me either.. Strange though it works for some.

isnt it preety pointless, when you got metro ui, we all wanted it and now we just want to change it ?,
thats horrible

Bluepill don't change it either :/ Also INCZ, It's because there choose a horrible image for the screen.

I don't know how you think that's horrible, I love it Very well made with the betta fish, though it WILL change.

This works to remove the ugly guy
forums.mydigitallife.info/threads/26529-Change-quot-uggly-guy-quot-Image

f*** i doesnt work says replace yes acess i denied ???????

I tried but as some other features it's only used with basic theme

Tried this and it does not work.I even made 2 copies,1 for the log on and 1 for backup and it does not work either.

You can change the background if you change the image in authui.dll. try resource hacker and change the image in IMAGE>12403>1033

Seems every body is having major problems telling how to change the Ugly Guy, I have found 5 different ways an none of them worked.
so here is my way to change Ugly Guy.
The "ugly guy" image is stored as a resource inside %WinDir%\System32\AuthExt.dll. Thus, in order to change the picture, a resource editor such as Resource Hacker (known as ResHacker or ResHack) has to be used, also you have to first take ownership or it will not work.

1.) locate %WINDIR%\System32\AuthExt.dll file.
2.) takeownership
3.) Run Resource Hacker or any resource editor such as Restorator, ResEdit, XN Resource Editor and etc.
4.) Open %WINDIR%\System32\AuthExt.dll file.
5.) Expand Image tree.
6.) Expand 1001 tree.
7.) expand 1033 ( you should see the Ugly Guy)
8.) click action
9.) select Replace Resource.
Click on Open file with new resource, and select a JPG image which has the resolution of 1280×1024 pixels.

Then, enter the following information:

Resource Type: IMAGE
Resource Name: 1001
Resource Language: 1033 (depends on your OS’s language and should be the same with original code)

Click Replace to make the change.
Now you should see your new Image.
click save and exit

next to test. C+A+D and select change user
You should see your new image instead of Ugly Guy.

Ah! Very helpful tutorial. Thank you very much Snuffy, I've changed it to cycle through 13 much prettier backgrounds.

You could modify Aero.theme (in the Themes Folder) using Notepad and get the same result.