Read more on [ Ссылка ]
Sometimes, when you initially upgrade to Windows 10 or install any feature update of Windows 10, your desktop background settings may get messed up, and all the new modifications you make in order to fix them stay only until a reboot or a shutdown. This issue is caused by corrupt migration of the system files, damage caused to the registry files, issues with the syncing capabilities of Windows 10, etc.
If your Desktop Wallpaper changes automatically by itself in Windows 10, here are a few things you need to look at to fix the problem:
1] Modify Desktop Background Slideshow settings
2] Disable Windows Sync settings
3] Change the desktop background
