There are three ways to shut down your PC—you can make the PC sleep, you can turn it off completely, or you can hibernate the PC.
This uses very little power, your PC starts up faster, and you’re instantly back to where you left off. You don’t have to worry that you'll lose your work because of your battery draining because Windows automatically saves all your work and turns off the PC if the battery is too low. Use sleep when you’re going to be away from your PC for just a little while – like when you’re taking a coffee break.
For a lot of PCs (especially laptops and tablets), your PC goes to sleep when you close your lid or press the power button. Here's how to check if this is what happens and to change it if it doesn't.
Open Power Options by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering Power options in the search box, and tapping or clicking Power options.
Do one of the following:
If you’re using a desktop or tablet, tap or click Choose what the power button does and under Power button settings, select Sleep and tap or click Save changes.
If you’re using a laptop, tap or click Choose what closing the lid does. Then, next to When I close the lid, choose what you want your laptop to do, when it's running on battery and when it's plugged in, and then tap or click Save changes.
When you’re ready to make your PC sleep, just close your laptop's lid or press the power button on your desktop or tablet.
If you're going on vacation and don't plan to use your PC for a while, you might want to turn it off completely. There are different ways to shut down depending on whether you use a laptop, desktop, tablet, or have a PC that came with Windows 8.1 or Windows RT 8.1.
In Windows 8.1 and Windows RT 8.1, there's a new and faster way to shut down desktops and laptops.
Tap or click Shut down or sign out and choose Shut down.
To shut down your PC, whether it’s a desktop, laptop or tablet:
Close any desktop apps you have open—this will prompt you to save your work.
Swipe in from the right edge of the screen, and then tap Settings.(If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Settings.)
Tap or click Power, and then tap or click Shut down.
With InstantGo, your PC wakes up instantly from sleep with your apps and data up to date. Your experience can last all day with extended battery life so if you bought a Windows 8.1 or Windows RT 8.1 PC that came with InstantGo, there's really no need to shut down completely. If you want to, there's a quicker way to do that:
Press and hold the power button on your PC (about four seconds) until you see Slide to shut down your PC on the screen.
Then, swipe down or drag the lock screen down with your mouse.
If you change your mind, swipe up or drag the lock screen up with your mouse to go back to what you were doing on your PC.
This option was designed for laptops and might not be available for all PCs (PCs with InstantGo don't have the hibernate option). Hibernate uses less power than sleep and when you start up the PC again, you’re back to where you left off (though not as fast as sleep). Use hibernation when you know that you won't use your laptop or tablet for an extended period and won't have an opportunity to charge the battery during that time. First check to see if this option is available on your PC and if it is, turn it on.
Tap or click Choose what the power button does and under Shutdown settings, select Hibernate (if it's available).
Now you'll see hibernate in these two places:
In the Power menu in the Settings charm.
In the Shut down menu.