How to Undo Disk Utility’s ‘Erase’ Function in Mac OS?

If you are a Mac user, Disk Utility is probably not new to you. It is a useful tool that is present on your Mac systems to manage disks and volumes. Not only that, but you can also use Disk Utility as a repair tool in the following situations.

  • When your computer or external storage device doesn’t work
  • When you have corrupted files
  • To format and erase a disk
  • Partitioning of the disk
  • To repair a damaged disk
  • When apps quit unexpectedly

In addition to partitioning, managing, and repairing disks and volumes, Disk Utility can also be used for simple operations such as erasing the disk to free up space. This Erase function is particularly useful when you use tools like Photoshop that require contiguous space to work.

Of course, there are specialized third-party tools to perform the Erase function, but using Disk Utility you have full control of what will be erased and moreover, it is available for free on your system. In case, partitions or volumes are deleted accidentally  Then in the forthcoming section of the article we will discuss how to recover data after being erased using disk utility.

What Does Mac Disk Utility Erase Do?

The erase function On a Mac Big Sur, Catalina, Mojave etc, works in a similar way to Formating any storage device. To use the Erase feature in Big Sur, Mojave or any macOS is extremely simple. You just need to select the volume to be erased, all the data on it gets erased permanently. So, it is important to have a backup before performing this operation. In case you accidentally erased using disk utility, in the further section of the article we will discuss how to recover erased hard drive mac.

Is It Possible To Undo The ‘Erase’ Function In Mac Disk Utility?

Now, a big question is ‘Is it possible to undo the Erase function’. The answer is yes. There are two ways to recover data after performing erase function one is an automated method to recover files after formatting the drive using disk utility with the help of advanced data recovery software like Remo Recover. And also you can make use of Time Machine to recover data and unerase disk utility Mac.

How To Undo Disk Utility’s Erase Function?

You can easily unerase Mac hard drive after the disk utility’s erase option on Big Sur, Catalina, Mojave, or any other macOS, by following the 2 methods mentioned below.

Unerase Mac Hard Drive After Disk Utility’s Erase Function Using Time Machine

Several Mac users have scheduled backups of their Mac using the Time Machine backup tool. Having a Time Machine backup makes it easy to retrieve lost files on a hard drive, whether you have accidentally deleted the files or files missing after Mac update.

  • Locate the Time Machine and from the menu bar select Enter Time Machine.
  • If you are unable to locate Time Machine icon in menu, then follow these steps
  • Apple menu > System preference > Time Machine > Show Time Machine in the menu bar.
  • Now, from the available backup timelines select the most recent backup and then click on Continue.
  • Now select the files you want to retrieve then click on Restore.

Now you can easily recover files that were erased by the disk utility erase function, if you don’t have back up then move to the next section of the article.

How To Recover Files After Formatting Hard Drive Mac Using Disk Utility?

To recover files after formatting a Mac hard drive using disk utility,  with the help of Partition Recovery software like Remo Recover. This is a powerful application that can help you to undo the ‘Erase’ operation and recover data. Its advanced scanning technique is capable of scanning every sector of your Mac’s hard drive and recovering data. All your documents, photos, videos of various formats will be recovered in their original shape using this tool.

This tool is compatible with all the macOS like Big Sur, Catalina, Mojave, High Sierra, Sierra, Yosemite, Mountain Lion, Lion, El Capitan etc

download Remo Recover for Mac

Steps To Recover Files After Erased Using Disk Utility

  • Download and install Remo Recover on your Mac and launch the software.
  • From the main screen select Recover Volumes/Drives

undo erase function

  • Select Formatted/Re-formatted option and then click on Next

click on format or reformat recovery

  • A list of recovered files will be displayed in the File Type View and Data Type.
  • Click on Save option to get back the files to desired location.

click on save option



You may have used Disk Utility to delete your Mac hard drive for various reasons. Fortunately, the procedures detailed in this article can help you restore deleted files after formatting your Mac hard drive using disk utility.

You can recover files after formatting the Mac hard drive with disk utility if you have a Time Machine backup. However, if you don’t have a backup then it is recommended to make use of the Remo Recover.

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