EASY WAY TO CHANGE WINDOWS7 LOG-ON SCREEN BACK GROUND,,,,!!!

Here is yet another quick Step method for the class of lazy guyzzz who hate reading long posts like me ;D

If you do not like the Windows 7 login screen, you can change it as shown above by trying this simple hack. 
Here is how you can do it.

1. Launch the Windows Registry Editor by typing Regedit in Start Menu

2. Go to ‘HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Authentication\Log ​​onUI\Background‘.

3. Double-click the DWORD value called ‘OEM Background’ to open it and enter 1 in the Value data field.

Note: If the DWORD ‘OEM Background’ is not there, you need to make it.

4. Browse to the background image that you would like
use on the log-in screen. A JPEG file that is less than 245 kb in size can only be used here.
5. Copy the image you want to use into the ‘%windir%\system32\oobe\info\backgrounds‘ folder. If the folder is not present, you need to create it.

6. Rename the image to backgroundDefault.jpg

7. Restart your computer to check the new login background screen.