Change windows 7 Log on Screen without any software

Here is a simple and easy trick to change the logon screen of  windows 7

• Download the registry file from here. Extract the file and double-click the registry entry to add into system.
• Now go to the following folder C:\Windows\System32\oobe.
• Here create a new folder Info in the oobe folder.
• Again create a new folder named backgrounds inside the Info folder.
• Copy your favorite image file into this folder (backgrounds) and rename this as backgroundDefault.
• The image must be JPG format and size must be less than 256 KB.
• Now Reboot your PC and see the change.