How to Fix Corrupted External Hard Drive on Mac, MacBook Air/Pro

Hello, when I plug in my external hard drive to my Mac, I found some problems. When I open a file, it hangs and it takes too long to recognize it. I tried to reformat my external hard disk, but it says to reformat it unsuccessfully. I think my external hard drive is corrupted, how to fix it?

Best Answered by

Dany· Answered on Mar 22, 2023

When you find your external hard drive is acting weird, you should check the connection issue first. How to check the connection issue? Use a new cable to connect the external hard drive or use another Mac device. If nothing helps, you can fix a corrupted external hard drive on your Mac by running the First Aid with Mac Disk Utility.

Before that, you'd better rescue data from your external hard drive with EaseUS Data Recovery Wizard for Mac. This powerful external hard drive recovery software protects your files and finds accidentally deleted files.

Step 1. EaseUS recovery tool can scan external hard drives, internal hard drives, SD cards, and USB flash drives. Choose the target external hard drive and click the blue button, Search for lost files, which will activate the scanning.

Step 2. You can filter the files by type or path. You can choose Pictures directly if you only want to rescue the photos on this external hard drive.

Step 3. After reviewing the files, you can click Recover to save these files to your local drive or other locations.

After the data rescuing, you can repair a Mac disk with Disk Utility. Disk Utility is a built-in repair utility that can fix a corrupted Mac internal hard drive or external hard drive. Follow the steps to repair the external hard drive:

Step 1. Run Disk Utility or boot Mac into Disk Utility on your Mac.

Step 2. Choose the corrupted external hard drive. If you cannot find the target disk, you should click 'Show All Devices'.

Step 3. Choose Run after clicking the First Aid button. Then, the repair process will start. Click Done when the repair is finished.

Use EaseUS Data Recovery Wizard to recover deleted or lost files easily and quickly.

Tutorials on how to recover lost, deleted, or formatted data from HDD, SSD, USB, SD card, or other storage media on Windows and Mac.

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