1 00:00:00,120 --> 00:00:03,000 Even if you know absolutely nothing about computers, 2 00:00:03,000 --> 00:00:05,840 turning off a PC is pretty simple, right? 3 00:00:05,840 --> 00:00:07,840 I mean, you press the button on the front or the side, 4 00:00:07,840 --> 00:00:09,960 or just click shut down on the Windows Start menu, 5 00:00:09,960 --> 00:00:11,640 and that's supposed to do the trick. 6 00:00:11,640 --> 00:00:13,280 But wait! 7 00:00:13,280 --> 00:00:16,040 It turns out that shut down in Windows 10 8 00:00:16,040 --> 00:00:18,240 doesn't actually mean shut down. 9 00:00:18,240 --> 00:00:21,000 Is this just another example of computer companies 10 00:00:21,000 --> 00:00:23,600 not trusting us to operate our own stuff? 11 00:00:23,600 --> 00:00:26,050 Or is something else going on? 12 00:00:26,050 --> 00:00:26,970 So here's the deal. 13 00:00:26,970 --> 00:00:29,330 Remember the hibernate feature that became popular 14 00:00:29,330 --> 00:00:30,990 back in the days of Windows 2000, 15 00:00:30,990 --> 00:00:33,090 where you could save all the contents of your RAM 16 00:00:33,090 --> 00:00:35,430 to your disc before powering the computer off, 17 00:00:35,430 --> 00:00:38,330 which would significantly cut down on startup time? 18 00:00:38,330 --> 00:00:39,570 Do you remember that? 19 00:00:39,570 --> 00:00:40,830 Hibernate was a big deal 20 00:00:40,830 --> 00:00:43,330 because older laptops tended to be power hogs. 21 00:00:43,330 --> 00:00:46,130 So hibernate offered a way to quickly resume working 22 00:00:46,130 --> 00:00:48,970 without putting the machine in standby or sleep modes 23 00:00:48,970 --> 00:00:50,350 that would still drop power. 24 00:00:50,350 --> 00:00:52,950 As laptops have become more power efficient over the years, 25 00:00:52,950 --> 00:00:54,930 hibernate was de-emphasized, 26 00:00:54,930 --> 00:00:56,590 although you can still show the hibernate command 27 00:00:56,590 --> 00:00:58,590 in the Start menu by checking this box. 28 00:00:58,590 --> 00:00:59,310 In favor of a feature that allows you to 29 00:00:59,310 --> 00:01:01,310 switch between hibernate mode and hibernate mode, 30 00:01:01,310 --> 00:01:02,310 you can also switch between hibernate mode and hibernate mode. 31 00:01:02,310 --> 00:01:03,310 This is a feature called hybrid sleep, 32 00:01:03,310 --> 00:01:04,310 which would put the computer in sleep mode, 33 00:01:04,310 --> 00:01:05,310 but also dump the contents of RAM to the disc. 34 00:01:05,310 --> 00:01:06,310 So the computer would wake up more quickly 35 00:01:06,310 --> 00:01:07,310 than it would from pure hibernation, 36 00:01:07,310 --> 00:01:08,310 but in case of power loss, 37 00:01:08,310 --> 00:01:09,310 the system could still recover its previous state 38 00:01:09,310 --> 00:01:10,310 from its hard drive or SSD. 39 00:01:10,310 --> 00:01:11,310 So with that established, 40 00:01:11,310 --> 00:01:12,310 let's bring it back to the title of the video. 41 00:01:12,310 --> 00:01:13,310 What happens when you click shut down? 42 00:01:13,310 --> 00:01:14,310 Well, Microsoft has taken the idea behind hybrid sleep 43 00:01:14,310 --> 00:01:15,310 and added yet another feature called fast startup 44 00:01:15,310 --> 00:01:16,310 that actually changes the way your computer 45 00:01:16,310 --> 00:01:17,310 turns on and off. 46 00:01:17,310 --> 00:01:18,310 So let's take a look at that. 47 00:01:18,310 --> 00:01:19,310 First off, 48 00:01:19,310 --> 00:01:20,310 you can turn on hibernate mode 49 00:01:20,310 --> 00:01:21,310 by clicking the button on the top right corner. 50 00:01:21,310 --> 00:01:23,310 Microsoft has taken the idea behind hybrid sleep 51 00:01:23,310 --> 00:01:26,310 and added yet another feature called fast startup 52 00:01:26,310 --> 00:01:30,310 that actually changes the way your computer shuts down. 53 00:01:30,310 --> 00:01:31,310 Here's how it works. 54 00:01:31,310 --> 00:01:32,310 Fast startup, 55 00:01:32,310 --> 00:01:34,310 which is enabled by default on Windows 10, 56 00:01:34,310 --> 00:01:36,310 takes the state of the Windows kernel, 57 00:01:36,310 --> 00:01:38,310 which is essentially the core elements 58 00:01:38,310 --> 00:01:39,310 of the operating system, 59 00:01:39,310 --> 00:01:40,310 and saves it to the disc. 60 00:01:40,310 --> 00:01:41,310 However, 61 00:01:41,310 --> 00:01:43,310 this only happens after Windows logs you off, 62 00:01:43,310 --> 00:01:45,310 so none of the data from programs 63 00:01:45,310 --> 00:01:47,310 or files you were working on get saved. 64 00:01:47,310 --> 00:01:48,310 In this sense, 65 00:01:48,310 --> 00:01:50,310 it's closer to a normal shutdown than hibernation, 66 00:01:50,310 --> 00:01:51,310 but don't worry. 67 00:01:51,310 --> 00:01:52,310 It doesn't get 100% of the way there. 68 00:01:52,310 --> 00:01:54,310 The benefit of fast startup 69 00:01:54,310 --> 00:01:56,310 is exactly what it sounds like. 70 00:01:56,310 --> 00:01:58,310 Your PC doesn't have to spend tons of time 71 00:01:58,310 --> 00:02:00,310 reinitializing critical Windows components 72 00:02:00,310 --> 00:02:01,310 when you power the system back on, 73 00:02:01,310 --> 00:02:03,310 allowing for shorter boot times. 74 00:02:03,310 --> 00:02:04,310 However, 75 00:02:04,310 --> 00:02:05,310 there's a downside 76 00:02:05,310 --> 00:02:07,310 that can cause really puzzling issues 77 00:02:07,310 --> 00:02:09,310 if you're unaware that fast startup even exists. 78 00:02:09,310 --> 00:02:12,310 Problems that are present within the kernel itself, 79 00:02:12,310 --> 00:02:14,310 such as a misbehaving device driver, 80 00:02:14,310 --> 00:02:16,310 that would normally disappear with a full shutdown, 81 00:02:16,310 --> 00:02:19,310 can recur when you start your computer back up 82 00:02:19,310 --> 00:02:21,310 if you have fast startup enabled. 83 00:02:21,310 --> 00:02:23,310 So because Microsoft figures people are more likely 84 00:02:23,310 --> 00:02:25,310 to hit restart than shut down 85 00:02:25,310 --> 00:02:27,310 if some bug necessitates a reboot, 86 00:02:27,310 --> 00:02:31,310 restart actually cycles your PC through a full shutdown, 87 00:02:31,310 --> 00:02:35,310 whereas shut down counterintuitively does not. 88 00:02:35,310 --> 00:02:37,310 Wow, that's wild. 89 00:02:37,310 --> 00:02:39,310 But there are ways around fast startup 90 00:02:39,310 --> 00:02:41,310 if you want to ensure your computer 91 00:02:41,310 --> 00:02:43,310 is completely clearing out its current state 92 00:02:43,310 --> 00:02:44,310 every time you turn it off. 93 00:02:44,310 --> 00:02:46,310 You can simply disable fast startup 94 00:02:46,310 --> 00:02:48,310 by going to control panel, then power settings, 95 00:02:48,310 --> 00:02:50,310 then choose what the power buttons do, 96 00:02:50,310 --> 00:02:52,310 not the most obvious place to find it, 97 00:02:52,310 --> 00:02:54,310 but at least it's a simple fix. 98 00:02:54,310 --> 00:02:56,310 You can also leave fast startup enabled 99 00:02:56,310 --> 00:02:58,310 and perform a full shutdown on demand 100 00:02:58,310 --> 00:02:59,310 by holding the shift key 101 00:02:59,310 --> 00:03:01,310 when clicking shut down from the start menu. 102 00:03:01,310 --> 00:03:03,310 There's a chance you may not even miss 103 00:03:03,310 --> 00:03:04,310 the slightly faster startup 104 00:03:04,310 --> 00:03:07,310 if you're running a modern system with a speedy SSD, 105 00:03:07,310 --> 00:03:09,310 so it might be worth it to bust out the stopwatch 106 00:03:09,310 --> 00:03:11,310 and see how much time you're saving 107 00:03:11,310 --> 00:03:13,310 with the feature on versus off, 108 00:03:13,310 --> 00:03:14,310 a totally normal thing 109 00:03:14,310 --> 00:03:16,310 that people do with their free time. 110 00:03:16,310 --> 00:03:18,310 Speaking of things to do with your free time, 111 00:03:18,310 --> 00:03:19,310 fix your stuff 112 00:03:19,310 --> 00:03:21,310 with our sponsor, iFixit. 113 00:03:21,310 --> 00:03:24,310 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