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To capture the whole screen, press the Windows key + PrntScrn simultaneously to save a screenshot to your Pictures > Screenshots folder
To screenshot one window, press Alt + PrntScrn simultaneously to send it to your clipboard. To permanently save it, open a program like Paint and paste it there, then save the document.
If you are on a Dell tablet, press the Windows key + Volume down to save a screenshot to your Pictures > Screenshots folder
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How to take a screenshot on a Dell laptop or PC
You have a few options at your disposal to take a screenshot on a Dell laptop computer or PC.
Screenshot your entire screen
If you want to capture everything you can currently see on your screen, press the Windows key + PrntScrn simultaneously This will automatically save a screenshot to your Pictures > Screenshots folder
Note that PrntScrn may also be spelled PrntSc, PrtSc, or something similar, depending on the model of your Dell laptop or PC and its keyboard.
Screenshot from a single window
If you only want to capture a single window on a Dell laptop or PC, press Alt + PrntScrn simultaneously. This will save the screenshot to your clipboard. To permanently save it, open a program like Paint and paste it there, then save the document.
Screenshot on a Dell tablet
If you have a Dell tablet, press the Windows key + Volume down simultaneously This automatically saves a screenshot to your Pictures > Screenshots folder
Read more: How to take screenshots on Android