How to take a screenshot on a Dell laptop is simple. First, locate the "Print Screen" key on your keyboard, usually labeled as "PrtScn" or "PRTSC". To capture the entire screen, press this key once. If you want to capture only the active window, press "Alt" + "PrtScn" simultaneously. The screenshot is now copied to your clipboard. Open an image editor like Paint and press "Ctrl" + "V" to paste the screenshot. You can then save it as an image file. Alternatively, use the "Snipping Tool" or "Snip & Sketch" available on Windows 10 for more advanced screenshot options.