How to fix Seagate/WD external hard drive not working on Mac?

By Katrina | Posted to Mac Data Recovery on March 5th, 2018 |

Any external hard drive can't escape from some data loss problems, even Seagate and WD external hard drive, which are widely used by numerous people all over the world for their good performance and durability. From the users of Seagate/WD external hard drive, one of the most common situations they have encountered is Seagate/WD external hard drive not working on Mac.

When Seagate/WD external hard drive doesn't work on Mac, we are unable to view data stored on the drive or save new data on the drive. That means that all our data on the Seagate/WD external hard drive get lost and the drive becomes unusable. This post will help us to fix Seagate/WD external hard drive not working on Mac.

First of all: Check whether Seagate/WD external hard drive can show up in Disk Utility

When Seagate/WD external hard drive doesn't work on Mac, the first thing is to check whether Seagate/WD external hard drive can be found in Disk Utility.

Scenario 1: Seagate/WD external hard drive can show up in Disk Utility

If it shows up in Disk Utility, there might be some file system errors on Seagate/WD external hard drive that the drive can't be mounted or read as usual. We can follow the below solutions to fix Seagate/WD external hard drive not working on Mac:

Solution 1: Mount Seagate/WD external hard drive in Disk Utility

Sometimes, external hard drives cannot be automatically mounted on Mac. But we still have a way to mount Seagate/WD external hard drive manually in Disk Utility:

Step 1: Open Disk Utility.

Step 2: Right click the Seagate/WD external hard drive from the left sidebar and then click the Mount button.

Solution 2: Repair Seagate/WD external hard drive via First Aid

First Aid in Disk Utility is a Mac built-in tool to check and verify minor errors on hard disk.

Step 1: Launch Disk Utility.

Step 2: Choose the grayed out Seagate/WD external hard drive.

Step 3: Select First Aid in the top center and click Run.

Solution 3: Reformat Seagate/WD external hard drive

Any file system problem can be easily fixed by reformatting. But reformatting will erase all data stored on Seagate/WD external hard drive. If we have some important files on the external hard drive, we should perform data recovery before reformatting.

Step 1: Recover data from Seagate/WD external hard drive with iBoysoft Mac Data Recovery

All we need is iBoysoft Mac Data Recovery, a free & professional Mac data recovery software that that can recover deleted/lost files from emptied Mac trash, recover data from formatted, inaccessible, corrupted, unmountable, unreadable drive, etc. in macOS 10.15/10.14/10.13/10.12/10.11/10.10/10.9/10.8/10.7.

Follow the steps below to recover data from Seagate/WD external hard drive:

1. Free download, install and launch iBoysoft Mac Data Recovery on Mac.

Recover data from Seagate/WD external hard drive on Mac

2. Select the Seagate/WD external hard drive and click "Next" to scan all lost files.

3. Preview the scanning results, choose files we need, and click "Recover" to get them back.

Step 2: Reformatting Seagate/WD external hard drive

1. Launch Disk Utility.

2. Click the icon of the Seagate/WD external hard drive on the left part of the window.

3. Click the Erase on the top of the Disk Utility window.

4. Complete related information (name, format, scheme, etc.), and then click Erase button.

Scenario 2: Seagate/WD external hard drive doesn't show up in Disk Utility

If Seagate/WD external hard drive doesn't show up in Disk Utility, unfortunately, the drive may have some hardware problems.

Solution 1: Try iBoysoft Mac Data Recovery

Sometimes, when Disk Utility can't recognize Seagate/WD external hard drive, iBoysoft Mac Data Recovery software can still detect the drive. So we can use iBoysoft Mac Data Recovery to recover data from Seagate/WD external hard drive.

Solution 2: Send it to a local technician for help

If unfortunately, iBoysoft Mac Data Recovery can't detect Seagate/WD external hard drive, we'd better look for help from a local data recovery company.

Katrina

Katrina is a data recovery expert @iBoysoft who loves to help readers solve various data recovery problems.

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