This will change the background of your Windows 7 logon screen:
1. Open - Regedit.
2. Navigate to - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
3. Change the value of "OEMBackground" to "1" - save and close
4. on your C: drive, navigate to "%windows%\System32\oobe\info""
5. create a new folder named "backgrounds"
6. in the backgrounds folder, save a jpg picture (the background you like) that is less than 256 KB. then rename it to "BackgroundDefault.jpg".
7. Reboot
1. Open - Regedit.
2. Navigate to - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
3. Change the value of "OEMBackground" to "1" - save and close
4. on your C: drive, navigate to "%windows%\System32\oobe\info""
5. create a new folder named "backgrounds"
6. in the backgrounds folder, save a jpg picture (the background you like) that is less than 256 KB. then rename it to "BackgroundDefault.jpg".
7. Reboot
