How to Enlarge a Virtual Machine’s Disk in VirtualBox or VMware


A hard disk platter and arm header.

If you create a digital onerous disk in VirtualBox or VMware, you specify a most disk measurement. If you would like extra space in your digital machine’s onerous disk later, you’ll must enlarge the digital onerous disk and partition.

Notice that you could be wish to again up your digital onerous disk file earlier than performing these operations — there’s at all times an opportunity one thing can go mistaken, so it’s at all times good to have backups. Nevertheless, the method labored fantastic for us.

Replace: Use the Digital Media Supervisor in VirtualBox

VirtualBox 6 added a graphical choice for enlarging and resizing digital disks. To entry it, click on File > Digital Media Supervisor in the principle VirtualBox window.


Choose a digital onerous disk within the checklist and use the “Dimension” slider on the backside of the window to alter its measurement. Click on “Apply” while you’re carried out.

You’ll nonetheless must enlarge the partition on the disk to benefit from the extra house. The partition stays the identical measurement even whereas the disk measurement will increase. See the directions under for extra data on enlarging the partition.


Enlarge a Digital Disk in VirtualBox with the Command Line

To enlarge a digital disk in VirtualBox, you’ll want to make use of the VBoxManage command from a Command Immediate window. First, shut down the digital machine — guarantee its state is ready to Powered Off, not Saved.

Notice: Earlier than persevering with, you also needs to delete any snapshots related to the digital machine in the event you use the snapshots function in VirtualBox. It will make sure you’re modifying the proper digital disk file and that every part will work correctly afterward.

The Virtual Machines currently installed on the example PC.

Second, open a Command Immediate window out of your Begin Menu and alter the listing to VirtualBox’s program information folder. Run the command:

cd "C:Program FilesOracleVirtualBox"

Command Prompt with "cd" command setting directory to the Virtualbox folder.

The next command will function on the VirtualBox digital disk positioned at “C:UsersEquinoxVirtualBox VMsWindows 10Windows 10.vdi”. It should resize the digital disk to 81920 MB (80 GB).

VBoxManage modifyhd "C:UsersChrisVirtualBox VMsWindows 10Windows 7.vdi" --resize 81920

Notice: Use two dashes earlier than resize within the command above.

Change the file path within the command above with the placement of the VirtualBox disk you wish to resize and the quantity with the scale you wish to enlarge the picture to (in MB).

Notice: In VirtualBox 6.0+, launched in 2019, chances are you’ll want to make use of the next command as a substitute:

VBoxManage modifymedium disk "C:UsersEquinoxVirtualBox VMsWindows 10Windows 10.vdi" --resize 81920

Command Prompt command resizing the virtual drive.

Notice that this course of doesn’t enlarge the partition on the digital onerous disk, so that you gained’t have entry to the brand new house but — see the Enlarge the Digital Machine’s Partition part under for extra data.

Enlarge a Digital Disk in VMware

To enlarge a digital machine’s onerous disk in VMware, energy off the digital machine, right-click it, and choose Digital Machine Settings.


Choose the digital onerous disk gadget within the checklist, click on the Utilities button, and click on Broaden to broaden the onerous disk.


Enter a bigger most disk measurement and click on the Broaden button. VMware will enhance the scale of your digital disk, though its partitions will stay the identical measurement — see under for data on enlarging the partition.


Enlarge the Digital Machine’s Partition

You now have a bigger digital onerous disk. Nevertheless, the working system’s partition in your digital onerous disk is similar measurement, so that you gained’t have the ability to entry any of this house but.

The Disk Management utility will show you the new space that is available on the virtual drive.

You’ll now want to increase the visitor working system’s partition as in the event you have been enlarging a partition on an actual onerous disk in a bodily laptop. You may’t enlarge the partition whereas the visitor working system is working, simply as you’ll be able to’t enlarge your C: partition whereas Home windows is working in your laptop.

You should use a GParted stay CD to resize your digital machine’s partition — merely boot the GParted ISO picture in your digital machine and also you’ll be taken to the GParted partition editor in a stay Linux surroundings. GParted will have the ability to enlarge the partition on the digital onerous disk.

First, obtain the GParted stay CD’s ISO file from right here.

Load the ISO file into your digital machine by going into the digital machine’s settings window, choosing your digital CD drive, and looking to the ISO file in your laptop.


Boot (or restart) your digital machine after inserting the ISO picture and the digital machine will boot from the ISO picture. GParted’s stay CD will ask you many questions whereas booting — you’ll be able to press Enter to skip them for the default choices.

As soon as GParted is booted, check out how the digital drive is partitioned.

GParted will show you how the virtual drive is partitioned.

Warning: Not all working programs will lead to drives which might be partitioned this manner, nevertheless there’s a good likelihood you’ll see one thing comparable. Be sure to take note of the present partitions while you’re doing this — carelessly resizing, reformatting, or deleting a partition can lead to an inoperable digital machine.

The association of the partitions is extraordinarily necessary. There are three partitions on the drive, plus 30 gigabytes of unallocated house.

The primary partition, sda1, is the boot sector or the EFI System Partition. The second partition, sda2, is the “major partition.” It’s the house allotted to the Home windows working system — that’s the partition we wish to broaden. It’s famous with the purple arrow and purple field within the image above.

Tip: Typically talking, you’ll be able to establish your major partition by the scale — it’ll be near the overall measurement of the unique digital drive you created.

Be sure that to notice that there’s a third partition, sda3, instantly between the partition you wish to resize and the unallocated house we created beforehand. The place of sda3 signifies that we can not simply broaden sda2 into the unallocated house. The third partition is actually in the way in which, and we’re going to have to maneuver it first.

Proper-click on sda3, then click on “Resize/Transfer.”

Notice: It may not be sda3 for you. You’re simply on the lookout for no matter partition is between the first partition and unallocated house.


A brand new window will seem that permits you to transfer the partition.

Not ehow much free space is following sda3.

Be aware of what the display says. There are 30,722 megabytes of house following the msftres partition. If you would like sda3 to be out of the way in which, we have to transfer sda3 all the way in which to the opposite aspect of the accessible house. Click on on the “Free Area Previous” field, enter “30722” into the sector, then click on “Resize/Transfer.” It ought to appear like this:


Now sda3 is queued to be moved to the top of the unallocated house, and we are able to additionally set sda2 to be resized. Proper-click sda2, then click on “Resize/Transfer.”


Enter the quantity after “Most Dimension” into the “New Dimension” subject, or drag the right-hand aspect of the slider all the way in which to the suitable.

Enter the value of "Maximum Size" into the "New Size" box.

If you happen to’ve carried out it accurately, it’s best to the worth for “Most Dimension” within the “New Dimension” field now. Click on “Resize/Transfer” to finalize the change.


Click on the inexperienced test mark button close to the highest to use the entire adjustments you’ve made. Making use of the adjustments can take a couple of minutes, relying on what number of transfer or resize operations you’ve gotten queued, and how briskly your laptop is. Don’t be alarmed if it’s important to wait some time.


After the resize operation completes, restart your digital machine and take away the GParted ISO file. Home windows will test the file system in your digital machine to make sure it’s working correctly — don’t interrupt this test.

Do not skip any of the repair or chkdsk procedures Windows runs after resizing your partitions.

The digital machine’s partition will now take up the whole digital onerous disk, so that you’ll have entry to the extra house.

Notice that there are simpler methods to get extra storage — you’ll be able to add a second digital onerous disk to your digital machine from its settings window. You may entry the opposite onerous disk’s contents on a separate partition — for instance, in the event you’re utilizing a Home windows digital machine, the opposite digital onerous disk will probably be accessible at a unique drive letter inside your digital machine.

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