This topic describes how to create a virtual machine from a virtual hard disk file in the Virtual Machine Manager library.


The source virtual hard disk must meet the following requirements:

  • The Administrator password on the virtual hard disk should be blank as part of the Sysprep process. However, the Administrator password for the guest operating system profile does not have to be blank.

  • Recommended: Install virtualization guest services (such as Virtual Machine Additions or Integration Components) on the virtual hard disk.


To create a virtual machine from a virtual hard disk:

  1. On the Actions pane in the Virtual Machine Manager Administrator Console, click New virtual machine.

  2. Complete the New Virtual Machine Wizard.

Wizard Page Action

Select Source

  1. Select the Use an existing virtual machine, template, or virtual hard disk option, and then click Browse.

  2. In the Select Virtual Machine Source dialog box, select the template that you want to use.

Virtual Machine Identity

Configure the following options:

  • Virtual machine name (required). Type a unique name for the virtual machine.

  • Owner (required). The owner must have an Active Directory domain account.

  • Description (optional). Type a description for the new virtual machine.

Configure Hardware

To configure additional hardware for the virtual machine, use the following procedures:

  • Startup Order—Select the order of devices to start the operating system.

  • CPU Requirements—Specify processor requirements for the virtual machine.

  • Memory—Specify the amount of memory to allocate to the virtual machine

  • Floppy Drive—Configure the virtual floppy drive to read a physical floppy disk on the host or to read a virtual floppy disk file stored in the library.

  • DVD or CD Drive—Add a virtual DVD or CD drive to an IDE bus.

  • Virtual Hard Disk—Add a virtual hard disk to an IDE device or a SCSI adapter.

  • Network Adapters—Configure one or more virtual network adapters for a virtual machine.

  • Priority and Availability—Configure the virtual machine's priority for CPU resources on the host. Configure the virtual machine to be highly available.

Select Destination

Choose between two options:

  • Place the virtual machine on a host. The wizard will continue through all of the remaining wizard pages.

  • Store the virtual machine in the library. The wizard will continue with the Select Library Server wizard page.

Select Host

(Host placement only)

Select a host to deploy the virtual machine on.

All hosts that are available for placement are given a rating of 0-5 stars based on their suitability to host the virtual machine. The host ratings are based on the virtual machine's hardware and resource requirements and anticipated resource usage. They are also based on placement settings that you can customize for VMM or for individual virtual machine deployments. The ratings are recommendations. You can select any host that has the required disk space and memory available.

  1. To see the placement settings that were used to rate the hosts, and optionally change those settings, click Customize Ratings to open the Customize Ratings dialog box.

  2. To view additional information about a host rating, select the host in the list. The tabs below the list in the details pane provide the following information:

    • Details -- Displays the status of the host and lists the virtual machines that are currently deployed on it.

    • Ratings Explanation -- If a host receives a zero rating, this tab lists the conditions that caused the rating.

    • SAN Explanation -- If a SAN transfer cannot be used to move the virtual machine's files to the host, this tab lists the conditions that prevent a SAN transfer.

If a host has network optimization enabled, a green arrow appears in the Network Optimization column. VMM 2008 R2 allows you to take advantage of network optimization capabilities that are available on Hyper-V hosts that are running Windows Server 2008 R2. For information about network optimization and the hardware that supports it, see the Windows Server 2008 R2 documentation. After a virtual machine is deployed, this feature is displayed only for virtual machines that are deployed on a host that is running Windows Server 2008 R2.

Select Library Server

(Library only)

Select a library server on which to store the virtual machine.

To view additional information about the available library servers, select the server in the list. The tab in the details pane beneath the list provide the following information:

SAN Explanation -- If a SAN transfer cannot be used to move the virtual machine's files to the library server, this tab lists the conditions that prevent a SAN transfer.

Select Path

Select the path to the folder that will store the configuration files for the virtual machine:

  • If you chose Place the virtual machine on a host, specify the path on the host to which to save files associated with this virtual machine.

    If you would like to store other virtual machines on this path, select the Add this path to the list of host default paths check box to add the path to the list of default paths during virtual machine creation.
  • If you chose Store the virtual machine in the library, specify the library server that will store the virtual machine, and then select the path on the available library shares to store the virtual machine's configuration files. The wizard will continue with the Summary page.

Select Networks

Modify the networks and attach them to None or to any of the virtual networks that are found on the selected host.

Networks area will list each of the virtual network adapters that are currently attached to the virtual machine. Network adapters will default to None if you selected None in the hardware configuration or to the best matching virtual network according to the network matching rules.

Additional Properties

(Host placement only)

Configure actions to take on a virtual machine when the virtualization service starts and stops. For more information, see How to Configure Automatic Start and Stop Actions for a Virtual Machine


Review the configuration settings. To change settings, click Previous. To begin creating the virtual machine, click Create.

Use the View Script button to display the Windows PowerShell - Virtual Machine Manager cmdlets that will perform the operation. All administrative tasks in Virtual Machine Manager can be performed at the command line or scripted.

See Also

For the most up-to-date Help information, go to the Virtual Machine Manager 2008 Help Online. To find additional Virtual Machine Manager 2008 documentation, go to the Virtual Machine Manager 2008 TechCenter Library.