How To Change Windows Default Login Screen

 Their are two methods to change the windows login background first is through internal setting and another one is throuh 3rd party program

  

the third party program  you can download from here 

click here 

 

method-1

1. Click "Run" and type "regedit" (leaving quotes).
   
   
   
2. 2
   Click "HKEY_USERS" (leaving quotes".
   
   
   
3. 3
   Click "Control Panel" (leaving quotes).
   
   
   
4. 4
   Click "Desktop" (leaving quotes).
   
   
   
5. 5
   Double-click "Wallpaper" (leaving quotes) on the right section.
   
   
   
6. 6
   Insert the location of the image you want to appear as your Logon Screen.