Hibernate mode uses less power than sleep mode and is available for laptops. For more details about your Dell computer, see the user manual at Back to top NOTE: You can resume working by either pressing your computer's power button, pressing any key on the keyboard, clicking a mouse button, or opening the lid on a laptop. Press the power button on your desktop, tablet, or laptop, or close your laptop's lid to make your computer sleep.Next to When I close the lid, select Sleep, and then select Save changes. If you are using a laptop, select Choose what closing the lid does.Next to When I press the power button, select Sleep, and then select Save changes. If you are using a desktop, tablet, or laptop, select Choose what the power buttons do.Or, select Start, then select Settings > System > Power & Sleep > Additional power settings.Use sleep mode when you are going to be away from your computer for a short time. You can quickly resume normal operation within a few seconds. Your computer technically stays on, but all actions on your computer are stopped, any open documents and applications are put in memory. Select Start, then select > Shut down.Tap or click Power, and then tap or click Shut down.(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Settings.) Swipe in from the right edge of the screen, and then tap Settings.Close any desktop apps you have open - this will prompt you to save your work.This option will not completely turn off your computer (only put it into ' Hibernation') unless you change the ' Power Option' settings. If you're going on vacation and don't plan to use your PC for a while, you might want to turn it off. This is required if you need to access the boot menu through the F12 key at starup. Complete Shut Down - This process will completely shut the computer down.This can be changed under ' Power Options'. Shut Down - This process puts the computer into ' Hibernation'.The below article discusses the following ways to shut down:

You don’t have to worry that your battery will be drained because Windows automatically saves all your work and turns off the deviceif the battery is too low. This uses very little power, your device starts up faster, and you’re instantly back to where you left off. In Windows 8, there's really no need to shut down your devicecompletely - instead put it in sleep mode. How To: Shut Down a Laptop with Windows 8

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