Take Spotlight beyond the Windows 10 Lock Screen. Spotlight for Windows Desktop lets you use Windows Spotlight images as desktop wallpaper, and as lockscreen images on Windows 7/8.x. Spotlight for Windows Desktop includes a GUI and Control Panel integration for easy configuration. Spotlight for Windows Desktop automatically downloads and images from the Windows Spotlight API on a regular basis and changes your desktop and lock screen images at regular intervals.
Based on open source code from Microzoom.fr. Images supplied by Microsoft.