How to find out which system component disabled the hibernation? (Windows 7)

Installing a VMware Workstation 7.1 Windows 7 VM, and find that I cannot enable hibernation with powercfg -h on. Windows says

An internal system component has disabled hibernation

What's wrong and how to fix it?

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Jimm Chen

Posted 2012-12-20T02:31:52.390

Reputation: 4 129

Answers

I finally got it. Windows 7 and 8 does not allow hibernation if it is installed inside a VHD.

Windows 7 powercfg.exe does not make it explicit. Windows 8 does, a screen shot below:

enter image description here

I cannot figure out the reason why Microsoft impose such limitation. If he puts hiberfil.sys onto a partition from a real disk , things should be able to go smooth.

BUT, is there a way to know it on Windows 7, through a system log or something?

Jimm Chen

Posted 2012-12-20T02:31:52.390

Reputation: 4 129

Use the registry to enable hibernation back.

start regedit.exe
go to the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentCongtrolSet\Control\Power
change the value HibernateEnabled from 0 to 1.

Now reboot and look if you have hibernation back.

magicandre1981

Posted 2012-12-20T02:31:52.390

Reputation: 86 560

Changing from 1 to 0 caused only that it disappeared from System menu, I still cannot enable it. – Betlista – 2017-02-22T06:42:43.400

Checked that key, no luck, HibernateEnabled is already set to 1. – Jimm Chen – 2012-12-20T07:32:15.837

ok, in this case set it 0 and reboot and now try to run the powercfg command. – magicandre1981 – 2012-12-20T12:05:28.870