What is fast startup and how to enable / disable it in Windows 10?

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Marie-Ange Demory


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November 11, 2020 For Management

A new way to start your computer in Windows 10 is Quick Start. This method of booting a computer is a combination of a cold boot (shutdown and reboot of the system; this leads to an initial boot) and the option to restart Windows from Hibernate. Unlike Windows 7, which closes user and kernel sessions, Windows 8 does not close, but hibernates the kernel session when the system is shut down.

Now keep in mind that Fast Startup only applies when you shut down your computer, not when you want to restart it; As a result, Windows 8 will reboot completely when the system restarts, and this means that Fast Boot does not appear in the image when trying to reboot Windows completely.

If you want to manually shut down your computer or force a shutdown, Fast Startup can't help you.

Manual shutdown via power options

But if you don't want to use fast boot and want to force a shutdown, let's say you've changed some hardware in your system and want to shut it down manually, this is what you should do:

How to disable fast startup

  • print Tasto Windows + I. to open the settings.
  • To go System
  • To go power and dream in the menu on the left.
  • Click on Additional power settings.

  • Now that the Power Options are open, select "Choose what the power buttons do" on the left side of the window (the options on the Control Panel home page)

  • A new window called System Settings will open. Click on Change settings that are currently unavailable;

This last category will have what you need. Just uncheck the checkbox in this category that says "Enable Quick Start (Recommended)".

To enable fast startup, select it and to disable it, simply uncheck this option

By default, Fast Startup is enabled in Windows 10, so if you want to use Fast Startup again, select the checkbox again.

How to perform a complete shutdown via the command prompt method Bypassing fast startup

Another method that you can easily use is the command prompt method. Here's what to do:

  • Click the Start button and type "cmd" in the search bar.
  • Right-click on the command prompt icon and select the “Run as administrator” option.
  • In the Command Prompt window, type: off / s / f / t 0
  • Press the Enter key and close the command prompt. This will allow a complete shutdown of the Windows 8 computer.

Alternatively, you can use the command prompt to type the command: powercfg -Paid

This is the command that disables hibernation in Windows, it can also help disable fast startup. Use it if the previous two methods don't work.

User session and kernel session

User session refers to the time a user with a unique IP address spends on a website. User sessions are considered separate if the user logs into a particular website after a long period of time and Windows 8 closes all active user sessions when the system shuts down. The kernel session, however, refers to the session in which the kernel is actively working. The kernel is a central operating system program that monitors all activity on the system and is the first to load when the computer starts. Windows 8 puts these sessions into hibernation using the Quick Start. Since the kernel file size is much smaller than the original Hibernate files, using the Quick Start ensures that Windows starts up faster.

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