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Recover Lost Data from Unmountable Hard Drive on Mac

Updated on Thursday, June 16, 2022

iBoysoft author Jessica Shee

Written by

Jessica Shee

How to Recover lost data from an unmountable hard drive on Mac?

Summary: When your external hard drive is not mounted on Mac, fix it with this guide. Also, you can use iBoysoft Data Recovery for Mac to recover data from this unmountable drive.

How to recover data from unmountable hard drive on Mac

Unmountable hard drives can happen to anyone at any time. "Unmountable" means that macOS is unable to make files and directories on your hard drive available for you to access through the file system.

unmountable USB hard drive

When you connect a USB hard drive to your Mac, you may see it in Disk Utility greyed out meaning "Not Mounted". When the hard drive won't mount and no solution to repair this hard drive will work, then you need to recover data from the unmountable hard drive.

This article lets you know how to access your data on the non-mounted hard drive on Mac.

Table of Contents:

Reasons making your hard drive unmountable on Mac

You are unable to mount your hard drive on Mac due to vast reasons. Here are some common reasons.

  • Software conflicts like Tuxera NTFS for Mac extensions.
  • Disk utility failure on your Mac
  • File system corruption inside the hard drive
  • Malware or virus attack
  • Malfunctioning of operating system

Besides those reasons, there are other reasons make a hard drive cannot be mounted successfully.

Your files on the unmountable hard drive are either lost or not accessible. So unmountable hard drive data recovery is an essential step after your hard drive fails to mount on Mac, probably more important than hard drive repair.

Guide to Recover lost data from unmountable hard drive on Mac

Recovering data from an unmountable hard drive is not as complex and troublesome as you think.

On the contrary, your files on the unmountable hard drive can be efficiently and easily recovered with the help of iBoysoft Mac Data Recovery.

iBoysoft Data Recovery is professional Mac file recovery software that helps you to recover lost/deleted documents, photos, videos, emails, music, etc. from storage devices using your Mac.

It recovers files when a hard drive is unmountable in macOS 12 Monterey, macOS 11 Big Sur, macOS 10.15 Catalina, macOS 10.14 Mojave, macOS 10.13 High Sierra, macOS 10.12 Sierra‎ , and earlier Mac OS X (10.11-10.7), and it works fine on M1, M1 Pro, and M1 Max Mac.

Moreover, it can efficiently recover lost data from unmountable hard drives, external hard drives, USB drives, memory cards, and sd cards on Mac.

Video tutorial to get files off the unmounted drive on Mac:

 Get files off unmounted drive on Mac 

Step-by-step instructions to do unmountable hard drive data recovery:

You can recover lost data from an unmountable hard drive on Mac with 4 simple steps.

Step 1: Download and install iBoysoft Data Recovery for Mac on your Mac.

Step 2: Launch iBoysoft Data Recovery for Mac, and select the unmountable hard drive.

Step 3: Click "Next" to scan all lost files.

Recover data from unmountable hard drive with iBoysoft Data Recovery for Mac

Step 4: Preview the scanning results, choose the files you want to recover, and click "Recover" to recover those files from the unmountable hard drive.

Besides helping to recover your data from unmountable hard drives, external hard drives, USB drives, memory cards, SD cards, iBoysoft Data Recovery for Mac works well for you to recover lost data from unreadable external hard drives, inaccessible hard drive, formatted drives.

After recovering your data from an unmountable hard drive, you can open Disk Utility and run "Erase" to format that unmountable hard drive, then it will work regularly again.