How to change the lock screen on your Windows computer by adding custom backgrounds and at-a-glance apps

You can change the lock screen on your Windows computer by customizing the background image and specifying what supplemental information it displays.
Gotta Be Mobile

How to Add a Background to the Start Screen in Windows 8.1

When Windows 8 first debuted, the operating system received a ton of criticism for the things it did. Complaints included the replacement of the Start Menu with the Start Screen and a new design that ...
PC World

Create Customized Desktop Backgrounds in Windows 7

Reader Edwin wants to know how to change the themes in Windows 7. Specifically, he has multiple photos he wants to use for his desktop background, but can’t find a way to add more than one. If you’ve ...

How to change and format the background of your PowerPoint slides to custom designs

You can change the background of your PowerPoint slides using the "Format Background" feature located in the "Design" tab.