When I sat down at my laptop on Wednesday, I had no idea what “fairy chimneys” were or why people would build caves into the sides of mountains to hide temples and homes. Credit Windows with that and one of its better, largely underutilized features: Windows Spotlight. Windows Spotlight rotates your desktop background on a regular basis, providing a backdrop of nature photography culled from Microsoft Bing’s licensed archives. You can download tons of free wallpaper themes directly from Microsoft. But those themes just cycle through a small collection of backgrounds. get windows 11 pro for che…