This article describes how to disable and then re-enable hibernation on a computer that is running Windows.
Warning You may lose data if you make hibernation unavailable and a power loss occurs while the hybrid sleep setting is turned on. When you make hibernation unavailable, hybrid sleep does not work.
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.
To have us disable and enable hibernation for you, visit the "Fix it for me" section. If you prefer to fix this problem yourself, visit the "Let me fix it myself" section.
Fix it for me
To fix this problem automatically, click the Fix it button or link. Click Runin the File Download dialog box, and follow the steps in the Fix it wizard.
This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.
The sleep or hibernate options may not be available for one or more of the following reasons:
Your video card may not support the sleep function. In this case, update the driver for your video card, or check the video card information and supported drivers that was included with your computer. For more information, see Update drivers: recommended links.
Sleep and other power saving states may be turned off in the BIOS of your computer. To turn on the sleep function, restart your computer, and then enter the BIOS setup. When your computer starts, instructions typically appear on the screen to indicate the key or keyboard shortcut that you must press to enter the BIOS setup process. Because not all computer manufacturers use the same BIOS, different keys may be assigned for this purpose.
If the hibernation option is missing, you may have the hybrid sleep option turned on.