How to Recover Data from External Hard Drive on Mac OS X

In today’s world, external hard drives have been widely used as supplementary mass storage devices for Mac. It is always a good way to keep your valuable photos, videos and other files in an external storage device so that you can bring them anywhere. Then problem might come: What if you accidentally delete files in your external hard drive? What if files are lost from your formatted external hard drive? Or what if files become corrupted in your external hard drive?

Mac External Hard Drive Data Lost Issue

When facing those annoying data loss issues, Mac users may ask: is there any solution for me to recover data from external hard drive Mac? If you are lucky enough, you may have backup copy of lost files, and you can easily restore them from that copy. But on the other hand, you can still ask help from a Mac external hard drive data recovery program. You can take Wondershare Data Recovery for Mac as a try, and then follow its simple steps to recover data from Mac external hard drive.

External Hard Drive Recovery Mac

This fascinating Mac external hard drive recovery Mac utility supports almost external hard drives of all brands, including Seagate, LaCie, Western Digital, Maxtor, etc. Download the trial version of Wondershare Mac Data Recovery from above link now. This trial version enables you to scan your external hard drive on your Mac before recovery.

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How to Recover Data from External Hard Drive on Mac OS X

Note: If you are a Windows user, you can also get the Windows version of Wondershare Data Recovery to perform external hard drive recovery, view more here: How to do external hard drive recovery on Windows computer.

Launch Wondershare Data Recovery for Mac, follow the next simple steps to perform external hard drive data recovery.

  1. Select a file type
  2. To recover data from Mac external hard drive, you can select the option "All File Types" to start or you can select the specific file type such as photo, video, audio, email, document or others.

    recover data from external hard drive mac

  3. Scan Lost Data from external hard drive
  4. In this step you can select the drive letter for your external hard drive and click "Start" to search it.

    mac external hard drive data recovery

    Note: If you want to recover data from a formatted external hard drive on your Mac, you can go to deep scan if quick scan can't find your lost data.

    deep scan lost data

  5. Restore Data from Max external hard drive
  6. Now you can preview and check found contents in the window after the scan. Then select files you need and click "Recover" to save them on your Mac.

    recover data from mac external hard drive

    Note: To avoid recoverable files from being overwritten during the recovery, please do select a folder on your Mac to keep them.

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Note: Recover Lost Mac Data under Mac OS X 10.13 (High Sierra)

Due to macOS High Sierra (macOS 10.13) requirement, Mac users are not allowed an access to the built-in system drive from any apps. Therefore, if you need to restore lost data from the system disk under macOS 10.13, please "disable System Integrity Protection" first.

How to disable "disable System Integrity Protection"? Please follow the steps below.

Step 1Reboot the Mac and hold down"Command + R" keys simultaneously after you hear the startup chime, this will boot OS X into Recovery Mode.

Step 2When the "OS X Utilities" screen appears, pull down the "Utilities" menu at the top of the screen instead, and choose "Terminal".

Step 3In the "Terminal" window, type in "csrutil disable" and press "Enter" then restrart your Mac.

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