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How to disable and re-enable hibernation on a computer that is running Windows

Introduction
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.
More information
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.



Resolution

To make hibernation unavailable, follow these steps:
  1. Click Start, and then type cmd in the Start Search box.
  2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
  3. When you are prompted by User Account Control, click Continue.
  4. At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
  5. Type exit, and then press Enter to close the Command Prompt window.
To make hibernation available, follow these steps:
  1. Click Start, and then type cmd in the Start Search box.
  2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
  3. When you are prompted by User Account Control, click Continue.
  4. At the command prompt, type powercfg.exe /hibernate on, and then press Enter.
  5. Type exit, and then press Enter to close the Command Prompt window.
Properties

Article ID: 920730 - Last Review: 07/22/2016 08:10:00 - Revision: 7.0

Windows Vista Business, Windows Vista Enterprise, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Starter, Windows Vista Ultimate, Windows Server 2008 Datacenter without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 for Itanium-Based Systems, Windows Server 2008 Standard without Hyper-V, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 Standard, Windows Web Server 2008, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Standard, Windows 7 Enterprise, Windows 7 Enterprise N, Windows 7 Professional, Windows 7 Professional N, Windows 7 Ultimate, Windows 7 Ultimate N

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