How to Change Windows 7 Logon Screen Background

You can now easily change the logon screen background of Windows 7 with regedit, since Windows 7 now supports the ability to load images into the background of the login UI screen.
Follow the below steps:
1) Type REGEDIT in start menu search box and press Enter.

2) Navigate to the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background

3) Right-Click on the right-side [...]