WEBVTT

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Even if you know absolutely nothing about computers,

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turning off a PC is pretty simple, right?

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I mean, you press the button on the front or the side,

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or just click shut down on the Windows Start menu,

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and that's supposed to do the trick.

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But wait!

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It turns out that shut down in Windows 10

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doesn't actually mean shut down.

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Is this just another example of computer companies

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not trusting us to operate our own stuff?

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Or is something else going on?

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So here's the deal.

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Remember the hibernate feature that became popular

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back in the days of Windows 2000,

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where you could save all the contents of your RAM

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to your disc before powering the computer off,

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which would significantly cut down on startup time?

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Do you remember that?

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Hibernate was a big deal

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because older laptops tended to be power hogs.

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So hibernate offered a way to quickly resume working

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without putting the machine in standby or sleep modes

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that would still drop power.

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As laptops have become more power efficient over the years,

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hibernate was de-emphasized,

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although you can still show the hibernate command

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in the Start menu by checking this box.

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In favor of a feature that allows you to

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switch between hibernate mode and hibernate mode,

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you can also switch between hibernate mode and hibernate mode.

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This is a feature called hybrid sleep,

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which would put the computer in sleep mode,

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but also dump the contents of RAM to the disc.

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So the computer would wake up more quickly

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than it would from pure hibernation,

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but in case of power loss,

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the system could still recover its previous state

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from its hard drive or SSD.

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So with that established,

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let's bring it back to the title of the video.

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What happens when you click shut down?

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Well, Microsoft has taken the idea behind hybrid sleep

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and added yet another feature called fast startup

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that actually changes the way your computer

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turns on and off.

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So let's take a look at that.

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First off,

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you can turn on hibernate mode

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by clicking the button on the top right corner.

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Microsoft has taken the idea behind hybrid sleep

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and added yet another feature called fast startup

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that actually changes the way your computer shuts down.

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Here's how it works.

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Fast startup,

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which is enabled by default on Windows 10,

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takes the state of the Windows kernel,

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which is essentially the core elements

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of the operating system,

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and saves it to the disc.

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However,

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this only happens after Windows logs you off,

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so none of the data from programs

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or files you were working on get saved.

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In this sense,

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it's closer to a normal shutdown than hibernation,

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but don't worry.

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It doesn't get 100% of the way there.

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The benefit of fast startup

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is exactly what it sounds like.

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Your PC doesn't have to spend tons of time

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reinitializing critical Windows components

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when you power the system back on,

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allowing for shorter boot times.

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However,

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there's a downside

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that can cause really puzzling issues

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if you're unaware that fast startup even exists.

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Problems that are present within the kernel itself,

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such as a misbehaving device driver,

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that would normally disappear with a full shutdown,

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can recur when you start your computer back up

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if you have fast startup enabled.

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So because Microsoft figures people are more likely

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to hit restart than shut down

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if some bug necessitates a reboot,

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restart actually cycles your PC through a full shutdown,

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whereas shut down counterintuitively does not.

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Wow, that's wild.

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But there are ways around fast startup

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if you want to ensure your computer

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is completely clearing out its current state

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every time you turn it off.

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You can simply disable fast startup

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by going to control panel, then power settings,

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then choose what the power buttons do,

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not the most obvious place to find it,

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but at least it's a simple fix.

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You can also leave fast startup enabled

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and perform a full shutdown on demand

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by holding the shift key

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when clicking shut down from the start menu.

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There's a chance you may not even miss

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the slightly faster startup

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if you're running a modern system with a speedy SSD,

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so it might be worth it to bust out the stopwatch

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and see how much time you're saving

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with the feature on versus off,

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a totally normal thing

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that people do with their free time.

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Speaking of things to do with your free time,

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Well, that's it for this video, guys.

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Thanks for watching.

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