Seagate HDD is not readable by this computer, how to fix Seagate HDD unreadable error?

Posted by Katrina to Mac Data Recovery on January 17th, 2018

Seagate HDD is not readable by this computer? Don't know how to fix Seagate HDD unreadable error? This article will show you the reasons of unreadable Seagate HDD and solutions to fix Seagate hard drive unreadable on Mac.

As one of the most popular hard drive brands, Seagate HDD is widely used all over the world. However, data loss problem happens frequently on Seagate HDD. Seagate hard drive unreadable error on Mac is one of the most common issues complained by a great deal of users in forum. When external drive not readable by this computer, we are unable to access the drive as well as data stored on it.

Why Seagate HDD becomes unreadable?

Seagate hard drive unreadable error on Mac is the result of damaged file system, virus attack, unsafe ejection and any other improper operation. But no matter what leads to unreadable Seagate HDD, it is a hassle and panic for users as very few people are regular with their backups.

How to fix "Seagate HDD is not readable by this computer" error on Mac?

Once our Seagate HDD becomes not readable on Mac, we should stop using the unreadable Seagate HDD or avoid reformatting the drive. Otherwise, it is possible to overwrite the old data stored on the unreadable Seagate HDD. Thus, we will lose the chance of data recovery.

Solution 1: repair the unreadable Seagate HDD with Disk Utility's First Aid

Step 1: Go to /Applications/Utilities/Disk Utility/, then click Continue.

Step 2: In the sidebar, select the disk you want to repair.

Step 3: Click the First Aid button.

If Disk Utility tells you the disk is about to fail, back up your data and replace the disk. You can't repair the unreadable Seagate HDD. Otherwise, continue to step 4.

Step 4: Click Run.

If Disk Utility reports that the disk appears to be OK or has been repaired, you're done. Otherwise, you have to retrieve as much of your data as possible.

Solution 2: recover data from unreadable Seagate HDD with free Mac data recovery, then reformat the drive

iBoysoft Mac Data Recovery is a free Mac data recovery software that can recover data from unreadable Seagate internal HDD, recover data from unreadable Seagate external HDD, recover data from not recognized Seagate external HDD, recover data from unreadable WD HDD, recover data from unreadable WD external HDD and any other brands of hard disk on macOS Mojave 10.14/High Sierra 10.13/Sierra 10.12 and 10.11/10.10/10.9/10.8/10.7.

iBoysoft Mac Data Recovery can recover deleted files emptied from Mac Trash, recover data from formatted hard drive, recover data from unmountable hard drive, recover data from unreadable hard drive, recover data from unmountable hard drive, recover data from unrecognized hard drive, recover deleted/lost files from hard drive, etc. It supports to recover lost documents, photos, videos, music, etc. from Macintosh HD, Mac Trash, external hard drive, USB drive, SD card and other storage devices.

Tutorial to recover data from unreadable Seagate HDD on Mac with iBoysoft Mac Data Recovery

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

Step 2: Launch iBoysoft Mac Data Recovery.

Recover data from unreadable Seagate HDD on Mac with iBoysoft Mac Data Recovery

Step 3: Select the unreadable Seagate HDD and click "Next" button to scan all lost data.

Step 4: Preview the searching results, choose files we need, and click "Recover" to get them back.

After having a check to ensure we have got all lost data back, we can reformat the unreadable Seagate HDD so that it can be usable.

Besides, iBoysoft Mac Data Recovery can also recover data from APFS hard drive, recover data from APFS external hard drive, recover data from APFS SD card, recover data from APFS USB flash drive, recover data from APFS pen drive, recover data from FAT32 drives, exFAT drives, HFS+ drives, no matter the drives are formatted, unmountable, corrupted or unreadable.

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