The shortcut combination Windows key + Shift + S is a feature in the Windows operating system that allows users to take screenshots. When pressed, the screen dims, and a small toolbar appears at the top, offering options to capture a rectangular area, freeform shape, window, or the entire screen. After selecting the desired area, the screenshot is copied to the clipboard, allowing users to paste it into applications like Microsoft Word or Paint. This tool is useful for quickly sharing information or saving visual content without needing additional software.