Boot from VHD

One of the hidden gems in the new Windows BETA offering from Microsoft is one that allows you to boot from a VHD file.
Windows 7 Beta and Windows Server 2008 R2 Beta support booting into the OS from a VHD file attached to Virtual PC or Hyper-V.
Follow the simple steps below and be amazed how easy it is…….
Right-Click on “Computer” and select “Manage.” From there expand “Storage” and right-click on “Disk Management” and select “Create VHD.”
Select what VHD you would like to boot from and select the VHD size and click OK.
Once you have created the VHD file, boot your machine with the OS DVD in the drive and choose “Install Now,” then press SHIFT+F10 to get the command prompt. Type the following:
When you return to the installation procedure, you will see a 20GB partition.You will be warned that you cannot boot from this volume – ignore this message and continue the install.
When you boot up, it will make Windows 7 the default boot option. You can change this using bcdedit
This is a great way installing multiple copies of Windows 7 or Windows Server 2008 R2 on a machine or storage area network without creating multiple partitions
To give you an idea of where this could be use useful take a school that has hundreds of students PC’s that could share the same VHD file that would be write protected and simply refreshed every time the machine is rebooted.  or a call center that used windows during the day for office based tasks and then swop’s to Linux during the night for data mining……. the possibilities are endless, WELL done Microsoft!
Have a play and enjoy… I think you will be presently surprised how cleanly this works.
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