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I'm using Windows 10 v1709, i5 6600k and GTX 660. All drivers are updated and Windows is up-to-date.

So basically, clicking restart or when Windows crashes (talking about in-game crashes when it stutters for a second, then freezes for ~5 seconds and then just reboots, no BSOD or any message), takes longer than two minutes to reboot. My OS is on a new SSD. Shutting down the computer and then immediately powering it on takes ~12 seconds.

In those two minutes, it goes to the Windows logo in the same amount of time, and then just keeps spinning on the logo (powering off my peripherals in the meantime, a couple of times) and then finally arrives at the login screen.

Run5k
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Filip Petrovic
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  • As @Run5k states, Fast Startup depends on hybrid shutdown, equivalent to partially Hibernating. Your boot times are as expected. – DrMoishe Pippik Jan 29 '18 at 22:42
  • It has been several days since we heard from you. Did you have the opportunity to perform a test to see how long it takes after you temporarily [disable Fast Startup](https://superuser.com/a/1152002/650163)? – Run5k Feb 19 '18 at 14:02
  • Sorry, yes. Disabling Fast Startup results in very similar boot times. I'm just baffled that it's possible for a normal Windows installation to boot on an SSD in more than 2 minutes on an SSD. Whatever the settings are. Thanks for the clarification! – Filip Petrovic Feb 23 '18 at 13:55
  • Always glad to help! – Run5k Feb 23 '18 at 15:52

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The shutdown-and-power-on scenario is relatively quick because Fast Startup is enabled by default:

How Fast Startup Works

Fast Startup combines elements of a cold shutdown and the hibernate feature. When you shut down your computer with Fast Startup enabled, Windows closes all applications and logs off all users, just as in a normal cold shutdown. At this point, Windows is in a state very similar to when it’s freshly booted up: No users have logged in and started programs, but the Windows kernel is loaded and the system session is running. Windows then alerts device drivers that support it to prepare for hibernation, saves the current system state to the hibernation file, and turns off the computer.

When you start the computer again, Windows does not have to reload the kernel, drivers, and system state individually. Instead, it just refreshes your RAM with the loaded image from the hibernation file and delivers you to the login screen. This technique can shave considerable time off your start up.

As a result, your shutdown-and-power-on procedure will typically be much faster than a reboot (which isn't affected by Fast Startup).

You can see the difference first-hand by temporarily disabling Fast Startup and then timing a few shutdown-and-power-on cycles for comparison.

Run5k
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  • So you are telling me that if fast startup didn't exist, Windows 10 would be booting in more than a minute even on high-end NVME drives? – Filip Petrovic Feb 03 '18 at 01:50
  • I certainly don't claim to be a hardware expert, and there may actually be some additional problems occurring within your system. However, if you take some time to read through the article I referenced as well as some additional [Fast Startup tutorials](https://www.tenforums.com/tutorials/4189-turn-off-fast-startup-windows-10-a.html), you will find that this default function is probably responsible for the vast majority of the difference in your boot times. As I said before, you can test this yourself by temporarily [disabling Fast Startup](https://superuser.com/a/1152002/650163). – Run5k Feb 03 '18 at 17:51