Disable hibernate in Win 7


A customer with Windows 7 VMs in their VMview environment is seeing a lot of disk space consumed by hypernate files.  The VMview Manager, vSphere, and ESX can manage the power, memory, and disk images for each VM.  As a result, it is redundant and even counter-productive to allow the Windows OS perform power management for themselves when running as a Virtual Machine.


  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.


Eliminated 3.1GB of disk usage from each Windows 7 VM in the customer’s VMview environment.  This setting achieved a savings of approximately 7TB of Enterprise SAN.

One thought on “Disable hibernate in Win 7

  1. to disable hibernate (aka safe sleep) in Mac OS X, use these terminal commands:
    * disable safe sleep mode: sudo pmset hibernatemode 0
    * remove the sleep image file: sudo rm -rf /var/vm/sleepimage


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