April 4, and part of the celebration includes new limited-edition wallpapers created by Microsoft designers and creators. Here's how to get them.

The photo you see above -- the default wallpaper for Windows XP -- is probably the most recognizable ... and then sold to Microsoft for an undisclosed sum (but it was apparently one of the highest ...

According to Instagram account Inside History, the Windows XP wallpaper image was taken in 1996 by photographer Charles O’Rear. It was acquired by Microsoft some time between then and the 2001 ...

Microsoft purchased it in 2000. The picture known as "Bliss" soon became one of the most viewed photographs in the world when it was set as the default desktop background in Windows XP.

Who hasn’t been lost in reverie staring at the default Windows XP wallpaper, dreaming of Middle ... who captured the iconic photo and sold it to Microsoft. O’Lear took a one-time payment ...

Dynamic Theme lets you dynamically change your wallpaper ... your Windows computer. All these tools work with both Desktop and Lock Screen backgrounds and are available to download from Microsoft ...