To change Windows 10 Logon Background follow the given steps:1. Download the software.
2. Extract and run the software.3. On the left you will be seeing some options
4. On clicking the first button you can make your own pic to be appeared on the back.
5. Or you can simply apply any color on the back.
6. Click "Preview" to preview your changes.
7. Click "Apply Changes" to apply your changed background.
8. You can also scale your applied image.
How to change Windows 10 Logon Background by Ahsun-Iqbal