Are you stuck with the VirtualBox VERR_DISK_FULL error and wondering how to fix it? If so, you come to the right place. Here, this post from MiniTool explores a couple of effective methods to help fix the annoying issue. Just take a look.

About VirtualBox and VERR_DISK_FULL Error

Oracle VM VirtualBox is a free and open-source virtualization program that allows you to run multiple operating systems on a single device. It’s available on various devices, such as Windows, Linux, macOS, and so on. You can easily download and install VirtualBox on your PC to create desired virtual machines.

However, sometimes when you are using VirtualBox, you may run into certain issues like the VERR_DISK_FULL error. It’s a common VirtualBox problem that may trouble you a lot. To learn more details about this error and find workable ways to fix it, focus on the following content.

Other widely-reported errors related to VirtualBox:


Result Code: E_FAIL (0x80004005)

Result Code: E_invalidarg (0x80070057)

What Causes the VERR_DISK_FULL Error

The VMDK (Virtual Machine Disk) VERR_DISK_FULL error may occur when you are attempting to create a new virtual machine or clone a current virtual machine. Do you know what’s the reason behind the annoying error? Well, this post summarizes multiple possible causes of this error as follows:

  • There is not enough disk space on the host partition.
  • The drive is formatted to FAT32.
  • You set the VirtualBox settings properly.

To create or clone a virtual machine successfully, you should take action to solve the VERR DISK FULL error based on the above reasons. There are a couple of solutions available for you.

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Solution 1: Get Enough Disk Space

As the VMDK VERR_DISK_FULL error indicates, VirtualBox may refuse to work during the virtual machine clone or creation if there is insufficient space on your host drive. Make sure the particular drive has at least 10GB of free space, which may make everything work well.

If your drive is almost full, try the following ways to release enough disk space.

#1. Run Disk Cleanup

Disk Cleanup is a Windows built-in utility that is used to delete unnecessary files, including system files, shadow copies, etc. You can utilize it to free up some storage.

Step 1: Press Windows + E to open File Explorer. Then go to This PC.

Step 2: Right-click the target drive and select Properties.

Step 3: Under the General tab, click the Disk Cleanup button.

click Disk Cleanup

Step 4: In the Disk Cleanup window, check all the unused files from the Files to delete list. Then click OK.

Delete unneeded files

#2. Analyze Your Disk Space and Delete Unwanted Files

You can also find and delete large but useless files to free up more disk space. To figure out what is taking up your disk space quickly and efficiently, you can make use of a space analyzer. MiniTool Partition Wizard is a great choice. It’s a free partition manager that can help you analyze disk space and delete unnecessary files.

Also, this program allows you to partition/clone a hard drive, format USB to FAT32/NTFS/exFAT, convert MBR to GPT without losing data, and more. To perform a disk space analysis with MiniTool Partition Wizard, follow the steps below.

Step 1: Download and install MiniTool Partition Wizard on your PC.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Step 2: Launch this program to enter its main interface. Then click Space Analyzer at the top toolbar.

Step 3: In the next window, choose the specific drive to scan from the drop-down menu and click the Scan button.

scan the target drive

Step 4: Wait until the scanning process completes. Locate the space-consuming and useless files or folders. Then right-click them and select Delete (Permanently) to delete them.

permanently delete the selected files and folders

#3. Extend Your Partition

On the condition that you have unallocated space or other partitions on the disk, it’s also suggested that you enlarge the partition for virtual machines from unallocated space or another partition. If there is contiguous unallocated space at the right of the target partition, you can easily extend it with Disk Management with the following steps.

Step 1: Right-click the Start icon and select Disk Management.

Step 2: Right-click the target partition and select Extend Volume.

select Extend Volume

Step 3: In the Extend Volume Wizard, click Next to continue.

Step 4: Enter the amount of space to extend in MB and click Next.

select the amount of space to extend

Step 5: In the next window, click Finish to complete the operation.

When there is no unallocated space adjacent to the partition, you may find the Extend Volume feature greyed out. Then MiniTool Partition Wizard comes to help you. This third-party partition resizer enables you to enlarge a partition from non-contiguous unallocated space or free space of another partition.

Download, install, and launch MiniTool Partition Wizard on your Windows PC. Then follow the instructions below to extend your partition.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

  1. Highlight the target partition and then select Extend Partition from the left action panel.
  2. In the prompted window, choose unallocated space or another partition to take free space.
  3. Drag the sliding handle leftward or rightward to determine the amount of space you want to take.
  4. Once done, click OK and Apply to execute the pending operation.
extend the partition with MiniTool Partition Wizard
Also Read:How to Increase VirtualBox Disk Size Under Windows Host

Solution 2: Convert FAT to NTFS

As you know, the FAT32 file system cannot handle files larger than 4GB. So, the VirtualBox disk full error may show up if your partition is formatted to FAT32. To fix it, you’d better change the file system to NTFS. Here, we collect two ways to convert FAT32 to NTFS without data loss, you can pick one according to your preference.

If the current file system of your partition is neither FAT32 nor NTFS, you need to format it to NTFS. To protect your data from being damaged, create a backup before the formatting.

#1. Via Command Prompt

Microsoft Windows offers you a useful command line to convert FAT to NTFS easily and quickly. You can do this with the given guide.

Step 1: Type cmd in the search bar. Then right-click Command Prompt in the Best match and select Run as administrator.

Step 2: In the elevated Command Prompt, type convert *: /fs:ntfs and press Enter. Replace * with the drive letter of your partition.

convert to NTFS via CMD

#2. Via MiniTool Partition Wizard

As a piece of free partition disk software, MiniTool Partition Wizard supports converting FAT32 to NTFS while maintaining the data as well. You can learn how to perform the conversion using MiniTool Partition Wizard from the step-by-step tutorial.

Step 1: Get MiniTool Partition Wizard on your PC. Then launch it to get into the main interface.

Step 2: Right-click the partition to convert and select Convert FAT to NTFS.

select Convert FAT to NTFS

Step 3: In the prompted window, click the Start button to move on. Then click Apply to save the change.

Solution 3: Switch to Another Drive

Don’t panic when you fail to clone a virtual machine with the VERR DISK FULL error. You can also try to fix it by changing the destination drive where you want to store the cloned files. Read on to find out how to carry out this easy workaround.

Step 1: Open VirtualBox. Then right-click the virtual machine to clone and select Clone.

Step 2: On the Clone Virtual Machine screen, expand the Path drop-down menu and then select Other.

change the copy location

Step 3: After that, locate the preferred location and click Select Folder. Then go to check if the virtual machine can be cloned successfully.

Solution 4: Take Snapshots for Everything

You are also likely to get rid of the VMDK VERR_DISK_FULL issue by cloning all the snapshots of the virtual machine rather than only its current state. Here’s how to do this.

Step 1: Right-click the failing virtual machine in VirtualBox and select Clone.

Step 2: Click the Expert Mode button at the bottom to access more clone settings.

Step 3: In the Path field, choose a directory where you want to store the cloned machine.

Step 4: After that, select Full clone under the Clone type section. Then choose Everything in the Snapshots section.

customize clone settings

Step 5: Finally, click Finish to proceed with the clone operation.

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Solution 5: Update VirtualBox

If your VirtualBox is out of date, it may randomly cause the VERR_DISK_FULL error. On this occasion, you should update this application to the latest version. This may help fix potential bugs or issues in VirtualBox, eliminating the VirtualBox disk full problem.

To update VirtualBox, you may need to uninstall this program and then reinstall it. The following are detailed steps.

Step 1: Press Windows + R to open the Run dialog.

Step 2: Type appwiz.cpl in the text box and click OK to open the Uninstall or change a program window.

Step 3: Right-click Oracle VM VirtualBox and select Uninstall to remove this app from your PC.

select Uninstall

Step 4: After the process finishes, open your browser and go to the official Oracle VirtualBox download page.

Step 5: Click the correct link according to your operating system to download the newest VirtualBox application.

download VirtualBox

Step 6: Once the download completes, locate the downloaded file in File Explorer. Then double-click it and follow the on-screen instructions to install VirtualBox back on your PC.

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Bottom Line

This post shows how to repair the VirtualBox VERR_DISK_FULL error in detail. When you are facing the same issue, try to fix it with the methods mentioned in this post. If you have problems using MiniTool Partition Wizard, please feel free to contact us via [email protected]. We’ll reply to you as soon as possible.

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