The full name of VHD is Virtual Hard Disk. It is a file formatted to be structurally
identical to a physical hard disk. It is typically used in various virtualization
packages, and can be used to install a wide variety of operating systems (various
versions of Windows and Linux).
Virtualization now has become one of the most used features in personal computers and
data centers. Since the standalone application “Virtual PC 2007” back in Windows XP
days up to current Hyper-V feature in Windows 7, the amount of users has been
steadily growing. VHD resizer is also growing at the same time.
Windows 7 is the most popular Windows OS today, so here I take Windows 7 as an
1.Open disk management, click the “Action” button then select “Create VHD”
2.In the pop-up window, select the VHD format and location on the machine. Click
3.After it is initialized, you can create partition on it.
Above I taught you how to create VHD. You see, to create a Windows VHD either through
Virtual PC or Virtual Server, you have to specify the maximum size of the file
first. You can set the VHD to be a fixed or dynamically sized file, the total size
the VHD is determined at the time you create it. either by mistake, on purpose,
because you were in a hurry, or by ignorance. Or even you just found it there, you
clicked on the default options and create a dynamic 19.53Gb VHD.
Whatever the case, over time, you may actually realize that the amount of VHD volume
assigned to is far away from being used. And plan to extend the total size of the
VHD file to allow more space for installed programs and data files. So we need a VHD
resizer to resize VHD.
First we should know what is VHD Resizer. Windows 7 built-in disk management can be
as a VHD Resizer, which allows you to extend or shrink the attached VHD as the same
as the physical disks. More information please refer to Windows Help Document. I’ll
ignore it here.
Some third-party software can also be as VHD Resizer. Such as AOMEI Partition
Assistant, not only can help you resize VHD partition, but also has some other
advanced partition operations: split VHD partition, convert FAT to NTFS, convert
dynamic to basic, copy partition and so on.
1.Download AOMEI Partition Assistant Standard
Edition, install and run. In the main interface you will directly get the hard
drive information like disk model, partition file system, capacity, etc. Choose the
partition on the VHD that you want to resize.
2. In the pop-up window, drag the partition handle leftwards to shrink the one you
decided to resize. You can also type a definite value in the “Partition size” box.
Then click “OK” to go back the main screen.
3. Click “apply” to commit the change.
Resizing means shrinking or extending. Above is only an example of shrinking. Maybe
you will encounter a situation that need to expand VHD partition. AOMEI Partition
Assistant is able to do this. “Extend Partition Wizard” and “Allocated Free Space”
are two practical functions.
AOMEI Partition Assistant is not only a VHD resizer, but also a optimizing partition
software. You can set partition labelfreely, change drive letter as you want, check partition and fix errors, etc.
AOMEI Partition Assistant has different editionsare designed for different Microsoft platform. Standard Edition is for PC users. As
for Windows Server, you can try AOMEI Partition Assistant Lite Edition or Server