Windows: In Windows 10, the lock screen displays a rotating set of beautiful photographs. If you want to keep one of those as your wallpaper, this tiny utility makes it super easy.

The lock screen images are easy: those are stored in C:\Windows\Web. You can find the Start screen images in the Screen folder, and Windows 8’s new wallpapers in the Wallpapers folder.

Here’s how it works. On Friday, Microsoft released the first beta of their Live Lock Screen app for Windows Phone 8.1. One of the neat aspects of the app is the ability to use custom wallpapers.

Just find the wallpaper of your liking, download it to your computer and then transfer it to your Windows Phone via Zune. Then venture into settings and change your Lock Screen setting. You may like ...