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Enable Sleep / Hibernate with Hyper-V

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Mark Harrison

Posts: 3775
Nickname: mharrison
Registered: Dec, 2003

Mark Harrison is Microsoft UK Systems Engineer focussing on .NET eBiz and Portals

Enable Sleep / Hibernate with Hyper-V

Posted: Sep 23, 2008 5:58 AM

This post originated from an RSS feed registered with .NET Buzz by Mark Harrison.
Original Post: Enable Sleep / Hibernate with Hyper-V Feed Title: Mark Harrison Feed URL: http://markharrison.co.uk/blog/xml.aspx Feed Description: .NET Portals, Collaboration and eBiz	Latest .NET Buzz Posts Latest .NET Buzz Posts by Mark Harrison Latest Posts From Mark Harrison

From Virtual PC ...

When you enable the Hyper-V role on Windows Server 2008 support for sleep /
hibernate will be disabled.

Q. Is there some way that I can "hack" the system to re-enable sleep /
hibernate with Hyper-V? A. No.

I am now using Windows Server 2008 as my primary laptop with Hyper-V (Link ) ... I now have a partial solution to this problem.

You can have Hyper-V installed but not started by the following registry setting:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hvboot]"Start"=dword:00000003

Now, when I start my laptop i have full access to the power management fucntionality.

If I need to demo a VM, I can start Hyper-V with the command

net start hvboot

Power management is then disabled again until the next reboot.

Read: Enable Sleep / Hibernate with Hyper-V

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