How to Recover Deleted/ Corrupted DMG Files on Mac

Brithny updated on Oct 15, 2019 to Mac File Recovery | How-to Articles

DMG file disappears permanently on your Mac, and it seems impossible to get them back. EaseUS Data Recovery Wizard for Mac recovers deleted DMG files from macOS 10.14 - OS X 10.6 with simples clicks. Here is the guide for DMG file recovery.

How to Recover Deleted DMG Files on Mac
How to Fix the Corrupted DMG Files

How to Recover Deleted DMG Files on Mac

"Hi, I have accidentally deleted a couple of DMGs that I would like to get them back. I have dragged them to Trash and emptied the Trash. It seems impossible to restore the DMG files. What can I do to retrieve the lost DMG files?"

Apple Disk Images are files (usually with the .DMG extension) which the Mac OS X operating system uses to store disk images, with optional data compression and encryption. Such images can be mounted as volumes to access stored data directly from the operating system. DMG files are mostly used for software distribution over the Internet, but Mac OS X users can create images of their own disks.

While data loss happens every, DMG files are no exception. And sometimes data recovery from such images is required. This brief article explains how to use Mac data recovery software for this task.

EaseUS Data Recovery Wizard for Mac

This mac drive recovery tool completely scans the Mac hard drive to locate and recover DMG files that are deleted accidentally or due to any other reason. It enables you to recover deleted, lost, or formatted files with no effort at all. Three simple steps are enough to restore deleted data even from emptied the Trash. The earlier you use, the greater the chance is to recover. Other beneficial features of the DMG file recovery program:


Recoverable Files:

It can be applied to repair and restore photos, videos, music files, emails, documents, archived files, and more: 200+ file types are supported.


Supported Devices:

Recover files from Mac notebook, Mac desktop, hard drive, SSD, USB drive, memory card, SD card, CF card, digital camera, iPod, MP3/MP4 player, etc.


Support macOS:

Support the macOS and Mac OS X above 10.8.


Recover deleted Mac data:

Recover deleted,formatted and other data loss situation.


Here's the step-by-step guide on how to recover deleted DMG file on Mac with the professional DMG recovery tool.

Step 1. Select the location where your important Word documents were lost and click Scan button.

select the location where your documents lost and click scan

Step 2. EaseUS Data Recovery Wizard for Mac will start immediately a quick scan as well as a deep scan on your selected disk volume. Meanwhile, the scanning results will be presented in the left pane.

scan the selected drive to find lost documents

Step 3. By Path and Type, you can quickly filter the Word files you've lost earlier. Select the target files and click Recover Now button to get them back at once.

click the recover now button to recover lost documents on your Mac

How to Fix the Corrupted DMG Files

What if the DMG files are corrupted? How to fix them? Unfortunately, when the corruption happens there may be little you can do to reverse it. However, there are a few things you can try.

Step One: Back up

Before trying to fix a corrupt disk image, make a copy of it. While you may be able to fix a damaged image, it is also possible that these suggestions may further corrupt it, so be sure to work from a copy.

Step Two: Use Disk Utility

Disk Utility has several routines you can use to try to clear the problem. Open the program and drag the disk image copy into the devices list. Then select it and in the "First Aid" tab run a disk verification. If any problems are found, try repairing the image.

If the problem still exists, you can try resizing the image. For resizing, you might try the options for resizing just the partition, just the image, or both the image and partition since these will target different parts of the image structure.

Step Three: Mount the Images

Sometimes the problem is with the disk image mounter not being able to handle the image structure. You might try mounting the image when booted into Safe Mode (holding Shift at start-up). You can also try mounting the image in another operating system. Many times the utilities built to enable Mac compatibility in Linux and Windows use methods for mounting or converting a filesystem that may be more successful at getting a filesystem mounted than the ones Apple provides.


To avoid DMG or other Mac data loss, you should do the following things:

  • Enable Time Machine Backup feature or data protection on Mac computer
  • Never use RM Command or command terminal to delete a file
  • Check selected files carefully before pressing Delete option

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Frequently Asked Questions

1. Why choose EaseUS Data Recovery Wizard?

"EaseUS Data Recovery Wizard is the best we've seen. It's far from perfect, partly because today's advanced disk technology makes data-recovery more difficult than it was with the simpler technology of the past, but it's fast and efficient..."PCMag

"The first thing you'll notice about EaseUS Data Recovery Wizard Pro is that its interface is very clear and uncluttered, with only a small collection of self-explanatory controls. You won't find lots of extra options hidden in a system of hidden menus, either; what you see really is what you get."techradar

"Recover lost files, even after deleting a partition or formatting your drive."Macworld

2. Why cannot I recover 2GB data for free?

It is recommended to check the version installed is Free or Trial because they are different versions.

Trial has data preview function but cannot save any files, while the Free version enables to recover 2 GB files. The default free space is 500 MB and you may share the product on social media to get another 1.5 GB.

3. Why cannot the recovered files be opened?

A file is saved as 2 parts on the storage device: directory info (which is comprised by file name, time stamp and size info, etc.) and data content.

If the files with original file names and folder structures cannot be opened, one possible reason is the corrupted directory info. There is still a chance to recover the data content with the RAW Recovery method in our software.

4. Why isn't it suggested to recover the files back to the original drive?

The storage structure of the lost files would be altered or damaged by any changes on the drive. If you save the recovered files back to the same drive, the original data structures and data content would be corrupted or overwritten, which causes permanent data loss. So you should prepare another disk to save the files.

5. How can I check whether my data is recoverable or not before purchase?

The Free version helps you save 2GB files, so verify the recovery quality of our product before purchase.

6. How long does it take to scan the drive?

It strongly depends on the capacity of your hard drive and the performance of your computer. As reference,most drive recoveries can be completed in around 10 to 12 hours for a 1-TB healthy hard drive in general conditions.

About Data Recovery Wizard

It's super easy to recover 250+ types of files after deletion, disk formatting and virus infection. Click the links and compare the difference of each version.