(aka: hybrid boot
or hybrid Shutdown
) is a new feature in Windows 8
to help your PC start up faster after shutting down. When turned on, Windows 8 does this by using a hybrid shutdown
(a partial hibernate) method that saves only the kernal session and device drivers (system information) to the hibernate (hiberfil.sys) file on disk instead of closing it when you shut down your PC. This also makes the hiberfil.sys file to be much smaller than what hibernate
would use (often 4GB or more). When you start your PC again, Windows 8 uses that saved system information to resume your system instead of having to do a cold boot to fully restart it. Using this technique with boot gives a significant advantage for boot times, since reading the hiberfile in and reinitializing drivers is much faster on most systems (30-70% faster on most systems tested). If you have a motherboard with UEFI
, then fast startup will be even faster.
This will show you how to force the use of fast startup
to always be turned on for all users and ignore local setting
in Windows 8
. By default "fast startup" is turned on. This tutorial can force it to stay on and grays out the settings to be able to turn it off.
You must be signed in as an administrator
to be able to do the steps in this tutorial.