How to expand VM disk in Hyper-V

How to expand VM disk in Hyper-V

Consideration before you expand the VHD hard disk:

• You need first completely shut down the virtual machine to expand the VHD. Y
• Make sure no snapshots are associated with this VM before starting to expand the VHD. If you expand a virtual hard disk that is associated with a virtual machine that has snapshots, these snapshots will be invalidated.

To expand VHD in Hyper-V, please follow these steps:

1. Open Hyper-V.

2. Shutdown the VM. Note: You must first completely shut down the virtual machine. You cannot expand a virtual hard disk that is associated with a running or saved stated virtual machine

3. Highlight the Hyper-V server and select Edit Disk in the right pane.

4. Select VM vhd file from the location.

5. In the Action windows, select Expand.

6. Enter the new size for VM disk.

7. Review the edit virtual hard disk information and click Finish to complete the expend.

Note: After expanding the VHD, You will either need to create a new partition to use the new space, or expand an existing partition into the new space. You can use either the Disk Management snap-in from the Computer Management tool or the DISKPART command to expand or extend partitions on Windows Vista and Windows Server 2008. However, for Windows Server 2003 or Windows XP, only the extension of data volumes is supported. System or boot volumes may be blocked from being extended, and you may receive the following error: Diskpart failed to extend the volume. Please make sure the volume is valid for extending

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