Fast Startup in Windows 10 is an interesting technology that allows you to start a computer much quicker after a previous shutdown. When you enable Fast Startup in Windows 10, the operating system uses hibernation technology to save the core and drivers into the hiberfil.sys file. Next time you fire up a PC, Windows restores its state from the hiberfil.sys file. Note that Fast Startup does not affect restart. Once you click “Restart” in the power menu, Windows performs full shutdown and power-on cycles.
Tip. Open Task Manager and go to the Performance tab. Check the Uptime parameter on the CPU tab. If your PC uses Fast Startup, you may spot quite a significant uptime even if you have just turned on your computer.
You may wonder why anybody would want to disable Fast Startup in Windows 10? After all, everyone wants their PCs to start faster. The thing is that Fast Startup sometimes causes all sorts of weird bugs and headaches: crashes, blue screen of death, errors during boot, etc. All those annoyances sometimes are a result of Fast Startup. That is why so many BSOD-troubleshooting articles recommend users turn off Fast Startup before attempting more complicated solutions.
Turn Off Fast Startup in Windows 10
Fast Startup settings in Windows 10 live inside the Classic Control panel. Six years after the release of Windows 10, you still need to open the Control Panel to disable Fast Startup and manage some other critical power-related settings.
Note. You cannot disable Fast Startup in Windows 10 if you do not have Administrator privileges.
- Right-click the start menu and select Power Options. You can also press Win + X.
- In the new window, click the Additional power settings link. It will get you to the needed section inside the classic Control Panel without browsing its vast jungles.
- In a new Control Panel window, click the Choose what power buttons do link.
- Next, click the Change settings that are currently unavailable link. That is where you need Administrator privileges.
Tip. If you try to disable Fast Startup on Windows 10 using a regular user without Administrator privileges, use an Administrator password on the UAC screen.
- Uncheck the Turn on Fast Startup (recommended) option.
- Click Save changes.
Finally, you can also turn off Fast Startup in Windows 10 by disabling hibernation. To disable Fast Startup in Windows 10, do the following:
- Press Win + R and enter the cmd command.
- Press Ctrl + Shift + Enter to launch Command Prompt as Administrator.
- Enter the following command:
powercfg /hibernate off
- Press Enter. After that, Windows 10 will disable hibernation together with Fast Startup.
Note. You need to enable hibernation first before turning Fast Startup back on. If you turned off Fast Startup in Windows 10 using the first part of this manual, simply repeat the steps and place a checkmark next to the Turn on Fast Startup (recommended) option on Step 6.