How to change the sleep timer on your Windows 10 computer to save power and prevent screen burn-in

To set the sleep timer on Windows 10, you'll need to find and open your computer's "Power & Sleep" menu.
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Energy Saver: Sleep setting with multiple users?

10.11.x: if John is logged in with Put Computer to Sleep: Never and Jane is logged in with Put Computer to Sleep: 5 Minutes, and the computer is sitting at the login screen, what happens? How can I ...