You can change your screensaver on a Windows 10 computer through your "Personalize" settings, where you can change it to a ...

You can change your Windows 10 login screen through your device's Settings app, and make it display any photo you like.

If you're not using to manage your photos, I think you're missing out. It's one of the fastest and most versatile photo managers/image editors currently available, and you can't beat the price. (It's ...