How To Change the Maximum Virtual Hard Disk Size of a Windows Hyper-V Server?

Problem

Sometimes you want to increase the maximum virtual hard disk size of a Windows Hyper-V server.

Step by Step Guide

1) Open Windows Hyper-V Manager

Windows Server 2008 Start > Programs > Administrative Tools > Hyper-V Manager.

2) Turn off the Virtual Machine that you want to increase Hard Disk Size

Right click Virtual Machine name and select "Turn Off".

3) Select Virtual Machine and go into Setting window

Right click Virtual Machine name and select "settings....".

4) Select Virtual Machine's hard drive property and go into Edit window

Click "Hard drive" in left of settings window and click "Edit" button in right of the window.

5) Select "Expand" option in Choose Action tab and click "Next"

6) Input the new disk size that you want to set and click "Next"

7) Click "Finish".

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