The Hibernate feature allows the Windows operating system to save and write the running state to a hard disk, before powering off the computer. Of all the power-saving states in Windows, hibernation is most economical, as it uses the least amount of power. You can use it to save computer energy when you know you won’t be using your laptop for an extended period and won’t get an opportunity to charge the battery anytime soon.
Hibernate feature uses the Hiberfil.sys file. The Hiberfil.sys hidden system file is located in the root folder of the drive where the operating system is installed. The Windows Kernel Power Manager reserves this file when you install Windows. The size of this file is approximately equal to how much random access memory (RAM) is installed on the computer. The computer uses the Hiberfil.sys file to store a copy of the system memory on the hard disk when the hybrid sleep setting is turned on. If this file is not present, the computer cannot hibernate.
Disable, Enable Hibernate in Windows 8.1 | 7
The path for enabling Hibernate option has changed a bit in Windows 8 | 7 from what it was in Windows XP, earlier. If you have been having trouble in finding Hibernate option in Windows 8.1, this short tutorial will help you out.
Hibernate Option is Missing
The hibernate button can disappear after a disk cleanup, or if you delete the hibernate file. So, if you cannot find the Hibernate button or if the Hibernate Option is Missing, you may do any of the following:
1] Type cmd in Windows 7 start menu search bar. Right-click on cmd and select ‘Run as Administrator’ to open an elevated Command Prompt. In Windows 8.1, you may simply use the WinX menu and select Command Prompt (Admin).
To enable hibernation simply type
powercfg /hibernate on
To turn hibernation off, type instead
powercfg -hibernate off
2] In Windows 8.1, by default, the Hibernate option is not activated in the Power Button options. Users may notice that there is no hibernate option in Windows 8.1. You can enable it and show the Hibernate button, by using the Control Panel.
Follow these posts on how to activate and display Hibernate in Power Button options in Windows 8 and how to change Power Button options in Windows 7.
3] You can also tweak the Windows Registry to enable or disable Hibernate. To do so navigate to the following key:
Give HibernateEnabled a value of 1 to enable Hibernation and 0 to disable Hibernation.
4] While you can always use our Ultimate Windows Tweaker, to enable or disable Hibernate easily in a click, Microsoft has now released a Fix It solution specifically for this purpose.
To have Microsoft disable and enable hibernation for you, click on these links to download the Fix It’s:
Do remember that in Windows 8.1, if you disable Hibernate, it will disable Fast Startup too.