1. Connect the Seagate external “for Mac” drive to the Windows computer. The drive must be connected to the computer during installation or the install will not complete. Download the file HFS4WIN.exe to your Windows computer. Double-click on the HFS4WIN.exe file to start the installation.
2. This Seagate Backup Plus Slim for Mac hard drive offers ample space for storing files with its 1TB capacity. Portable drive in silver and black features 1TB storage capacity and Mac compatibility Uses USB 3.0 for ultra-fast data transfer and works with USB 2.0 ports on older machines.
3. Seagate Toolkit for macOS. Get the most out of your storage solution with easy-to-use tools such as Mirror, Sync Plus, Seagate Secure, and RGB and Status LED Management. See your product manual for which Toolkit activities are supported by your drive.

Seagate Backup Plus Slim 1TB External Hard Drive Portable HDD – Black USB 3.0 for PC Laptop and Mac, 1 year Mylio Create, 2 Months Adobe CC Photography (STHN1000400) 4.6 out of 5 stars 7,919 $52.49 $ 52. 49 $79.99 $79.99.

I have a Seagate Backup Plus drive external hard drive that works perfectly well. But yesterday, this disk suddenly became not readable when inserting to Mac. There are many significant working files on it. Is there any method to fix 'Seagate Backup Plus drive not readable, recognized on Mac' problem?

Software For Seagate Backup Plus

Seagate Backup Plus drive drive is a quite popular kind of external hard drive, and can bring us much convenience by storing and transferring files. But there are also times that we encounter errors when using Seagate Backup Plus drive drive. Like the case above, one of the errors that we may meet is Seagate Backup Plus drive not readable, recognized on Mac.

When getting into this problem, what we care about most is usually the method to fix 'Seagate Backup Plus drive not readable, recognized on Mac' problem as well as the security of files on the drive. As many users don't know much about how to fix external hard drive not readable by this computer, this passage will offer methods.

3 methods to fix 'Seagate Backup Plus drive not readable, recognized on Mac' problem

Here are three methods can be used to fix this problem:

Method 1: Fix not readable, recognized Seagate Backup Plus drive drive with Disk Utility

Disk Utility is a built-in tool on Mac that can help fix errors.

1. Launch Disk Utility from Utilities.

2. Select the not readable/recognized Seagate Backup Plus drive drive at the left part of the window.

3. Click First Aid at the top of the window, click Run, and then wait until fixing finishes.

Method 2: Reformat not readable, recognized Seagate Backup Plus drive drive to make it readable

Since Disk Utility can only fix minor errors, it is very possible that Method 1 fails and we need to reformat the drive to make it readable. But if we directly reformat the drive, we will lose all files on it. So for the security of our files, we should firstly recover lost data from not readable/not recognized Seagate Backup Plus drive drive, and then fix the drive by reformatting.

1st Step: Recover lost data from not readable/not recognized Seagate Backup Plus drive drive on Mac with iBoysoft Data Recovery for Mac

iBoysoft Mac Data Recovery is a professional Mac data recovery software that can recover lost data from not readable/not recognized Seagate Backup Plus drive drive, recover deleted/lost files from external hard drive, recover lost data from formatted external hard drive, recover lost data from unmountable external hard drive, recover lost data from unreadable external hard drive,recover lost data from corrupted external hard drive, recover deleted/lost partition, etc. on macOS Big Sur 11/10.15/10.14/10.13/10.12 and 10.11/10.10/10.9/10.8/10.7/10.6.

Aside from above, iBoysoft Data Recovery for Mac can alsorecover lost data from unmountable hard drive, recover lost data from unreadable USB flash drive,recover lost data from unreadable SD card, etc.

Tutorial to recover lost data from not readable/not recognized Seagate Backup Plus drive drive on Mac

Step 1: Connect not readable/not recognized Seagate Backup Plus drive drive to Mac.

Step 2: Launch iBoysoft Data Recovery for Mac.

Step 3: Select the not readable/not recognized Seagate Backup Plus drive drive and click Next to scan lost files on it.

Seagate Backup Plus For Mac Download

Step 4: Preview scanning results, choose files we need, and then click Recover to get those lost files back.

2nd Step: Reformat not readable/not recognized Seagate Backup Plus drive drive with Disk Utility

After recovering lost files, we can fix not readable/not recognized Seagate Backup Plus drive drive on Mac by reformatting.

• Steps to erase Seagate Backup Plus external hard drive

Method 3: The not readable/not recognized Seagate Backup Plus drive drive can't show up in Disk Utility - send it to a local technician for help

If our Seagate Backup Plus drive drive even can't show up in Disk Utility, it is very possible that the drive has bad sectors or some other serious errors. Naturally, it can't be fixed with the first 2 methods. So we'd better find a local technician to help us get out of trouble.

Still have questions?

I have exactly the same problem and already do the Time Machine backups but bought the Seagate Plus Slim in order to save all my photos and videos on an external hard drive so I can get them off my MacBook Air and have them in 2 places. Just followed the steps to erase the drive and then selected 600 photos to export but it didn't work --- a window came up explaining the export operation failed and it listed the first 100 photos with error explanation on each that the file 'couldn't be opened because there is no such file'. What could this mean?

Feb 16, 2016 5:55 AM