How to modify the background image when logging in win10?

Win10 replaces the login interface background image method:
Replace the login background needs to change the system file, divided into the following two steps:
First step: Generate a computer called Windows.UI. Logon.pri file
Windows.UI.Logon.pri file generation method:
1, download the PowerShell program, the program is decompressed after the download is completed.
2, after the decompression is completed, you will get a Login.ps1 file, we will save this file to the desktop.
3, ready to replace the background image, put it on the desktop, such as gezila.jpg "text-align: center">
3, in the "right-click menu" added "ldld" Right click on the menu bar of the right-click menu and select “Administrator Takes Ownership”. After setting, click “Apply”.

4, open C: WindowsSystemResources, right-click on the file to select “ administrator get all & rdquo; etc. When a window appears flashing and we are able to operate on the Windows.UI.Logon file.
5, enter the Windows.UI.Logon file, add the .Backup suffix to the backup after the original file, and then copy the generated Windows.UI.Logon.pri file to the inside, if you want to obtain permission, please directly The point is OK, you can see that the background image has been replaced with the one you added.