Repair External Hard Drive On Mac

1. Free External Hard Drive Repair
2. How To Repair An External Hard Drive On Mac

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Summary: This is a tutorial to repair corrupted, unreadable and unmountable external hard drives on Mac computers, but in case of losing data accidentally, you can recover your files from the external hard drive with iBoysoft Data Recovery for Mac at first.

Nowadays, people have been relying more on external hard drives, either to extend the capacity of primary storage media or to create a backup copy of important data. However, it's common that an external hard drive stops working suddenly, or becomes corrupted, unmountable, unreadable, and inaccessible on Mac. In this article, we will tell you how to repair external hard drives on Mac without losing data.

How to repair external hard drive without losing data on Mac?

In this part, you will see 4 feasible solutions to repair external hard drives that are corrupted or not detected on Mac mini, MacBook Pro/Air, etc. And the following is a general graphic about external hard drive repair and recovery.

Solution 1: Check the IDE / SATA USB Connections

Sometimes, your external hard drive is not showing up or working normally just because of the faulty connections. Therefore, before you set about repairing this external hard drive, the first thing you can do is to check the connections.

1. Step 1: Reinsert the external hard drive into another USB port or to another Mac computer.
2. Step 2: Try another USB cable to connect the hard drive to your Mac.
3. Step 3: Check if there any software update is available in your APP store in that an outdated driver could make your external hard drive not recognizable.

Solution 2: Repair external hard drives with First Aid

First Aid in Disk Utility is able to repair many disk problems, for instance, multiple apps quit unexpectedly, the file system of a hard disk is corrupted, or an external device doesn't work properly, etc.

1. Step 1: Go > Utilities > Disk Utility.
2. Step 2: Select the external hard drive you want to repair in the left sidebar.
3. Step 3: Click First Aid on the top and click 'Run' to repair this external hard drive.

Solution 3: Repair external hard drives with FSCK command

Fileloupe 1 7 18. If Disk Utility can't repair external hard drive and your hard drive is not readable by your Mac computer still, there is an alternative way called FSCK command that can repair your external hard drive. Try it and you may have luck with this command line.

1. Step 1: Go > Utilities > Terminal.
2. Step 2: Type in diskutil list to list all the connected drives on your Mac currently.
3. Step 3: According to the disk information, locate the external hard drive you want to repair in the list, and then find its drive identifier.
4. Step 4: Restart your Mac and, before the Apple logo appears, hold down 'Command + S' keys. This will boot your Mac into Single User Mode.
5. Step 5: Some white text will scroll by quickly. When it stops, type in /sbin/fsck –fy, then press Enter.
6. Step 6: Type in /sbin/fsck_hfs -fy /dev/[drive identifier] (You need to replace hfs with the file system of your external hard drive and replace [drive identifier] with the identifier of the external hard drive).
7. Step 7: When fsck is finished checking and repairing the errors in your external hard drive, type reboot into the command prompt and press Enter to restart your Mac.

Free External Hard Drive Repair

Solution 4: Repair external hard drives by reformatting

If FSCK command is too difficult to perform for you, another solution is to reformat this corrupted external hard drive. However, reformatting will erase all the files on this drive. Thus, you need to keep in mind that this solution can only be exerted when you don't have anything important on this external hard drive or you have backed up your important files previously.

• Tutorial to reformat external hard drive on Mac

How to recover lost data from external hard drives?

The most terrible situation is that you can neither access your important files on this external hard drive nor have any copy of data backup at hand. What's worse, when you try to fix disk errors with Disk Utility, only to be told 'Error: Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk and restore your backed-up files.' What to do in this case? Actually, you still can get your files back with reliable external hard drive data recovery software, and iBoysoft Data Recovery for Mac is such a useful recovery tool.

iBoysoft Data Recovery for Mac is free external hard drive data recovery software, which can recover lost data from external hard drives that First Aid failed to repair and recover lost data from encrypted APFS external hard drives. What's more, when the disk is corrupted, formatted, unmountable, unreadable, or even erased, this software can still recover the lost files. This all-in-one recovery tool can restore files from emptied Trash, hard drives, SD cards, memory cards, USB flash drives, etc.

How to convert powerpoint into keynote. With this data recovery software, you can recover emails, photos, documents, videos, etc. on macOS 10.15 (Catalina), macOS 10.14 (Mojave), macOS 10.13 (High Sierra), macOS 10.12 (Sierra) and Mac OS X 10.11 (El Capitan), 10.10 (Yosemite), 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion).

Tutorial to recover lost data from the external hard drive

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

Step 2: Launch this program. Select the external hard drive that needs to be repaired and click 'Next'. The program will start scanning this drive for recoverable files.

Step 3: After the scanning process finishes, you can click the found files and preview.

Step 4: Choose what you want to get back and click 'Recover'. Call 0f duty modern warfare.

Having finished the hard drive data recovery with Mac data recovery software, you can fix this external hard drive by reformatting so that you can use it again.

If you can't repair the external hard drive by reformatting, probably the external hard drive has been damaged physically. In this case, you have to send it to an expert or replace it with a brand-new one.

Sep 21, 2020 • Filed to: Solve Mac Problems • Proven solutions

How Do I Recover Files from an External Hard Drive on a Mac?

In today's world, external hard drives have been widely used as supplementary mass storage devices for Mac. It is always an excellent way to keep your valuable photos, videos, and other files in an external storage device so that you can bring them anywhere. Then the 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?

When facing those annoying Mac external hard drive data loss issues, Mac users may ask: How do I recover files from a corrupted, broken or formatted external hard drive on Mac OS X? If you are lucky enough, you may have a backup copy of lost files, and you can quickly restore them from that copy. If not, you can still ask for help from a Mac external hard drive data recovery program.

Part 1. How to Recover Data from External Hard Drive on Mac OS X

To recover data from external hard drive on Mac OS X, you can take Recoverit Data Recovery for Mac as a try. This fascinating Mac external hard drive recovery software supports almost all brands of external hard drives, including Seagate, LaCie, Western Digital, Maxtor, Samsung, etc. It also supports recovering all types of files no matter whether they are deleted, formatted, or corrupted from an external drive. Moreover, this Mac data rescue software allows you to retrieve files from external hard drives, even if they are corrupted, broken, formatted, dead, crushed, or damaged.

Video Guide to External Hard Drive Recovery

Show all open windows on mac. This video tutorial demonstrates to you how to recover data from external hard drive on Windows. The steps are true of Mac OS X file recovery from the outer disk. You can also turn to the below text-based macOS recovery guide.

2. How to Retrieve Data from External Hard Drive on Mac

Download and install Recoverit data recovery on your Mac computer. Launch Recoverit Data Recovery for Mac and follow the next simple steps to perform external hard drive data recovery on Mac OS X.

1. Select external hard drive

In this step, you can choose a specific location where the files get deleted or lost. To recover data from Mac external hard drive, please select the drive letter for your external hard drive and click 'Start' to scan data.

1. Scan hard drive to search data

Recoverit will start an all-around scan. The 'All-Around Recovery' mode will deep dig into your Mac external hard drive and piece the bits of your files together on it. It might take a little long time.

1. Restore files from Mac external hard drive

Now you can preview and check the found contents in the window after the scan. Then select files you need and click 'Recover' to save them on your Mac.

First Aid in Disk Utility is able to repair many disk problems, for instance, multiple apps quit unexpectedly, the file system of a hard disk is corrupted, or an external device doesn't work properly, etc.

1. Step 1: Go > Utilities > Disk Utility.
2. Step 2: Select the external hard drive you want to repair in the left sidebar.
3. Step 3: Click First Aid on the top and click 'Run' to repair this external hard drive.

Solution 3: Repair external hard drives with FSCK command

Fileloupe 1 7 18. If Disk Utility can't repair external hard drive and your hard drive is not readable by your Mac computer still, there is an alternative way called FSCK command that can repair your external hard drive. Try it and you may have luck with this command line.

1. Step 1: Go > Utilities > Terminal.
2. Step 2: Type in diskutil list to list all the connected drives on your Mac currently.
3. Step 3: According to the disk information, locate the external hard drive you want to repair in the list, and then find its drive identifier.
4. Step 4: Restart your Mac and, before the Apple logo appears, hold down 'Command + S' keys. This will boot your Mac into Single User Mode.
5. Step 5: Some white text will scroll by quickly. When it stops, type in /sbin/fsck –fy, then press Enter.
6. Step 6: Type in /sbin/fsck_hfs -fy /dev/[drive identifier] (You need to replace hfs with the file system of your external hard drive and replace [drive identifier] with the identifier of the external hard drive).
7. Step 7: When fsck is finished checking and repairing the errors in your external hard drive, type reboot into the command prompt and press Enter to restart your Mac.

Free External Hard Drive Repair

Solution 4: Repair external hard drives by reformatting

If FSCK command is too difficult to perform for you, another solution is to reformat this corrupted external hard drive. However, reformatting will erase all the files on this drive. Thus, you need to keep in mind that this solution can only be exerted when you don't have anything important on this external hard drive or you have backed up your important files previously.

• Tutorial to reformat external hard drive on Mac

How to recover lost data from external hard drives?

The most terrible situation is that you can neither access your important files on this external hard drive nor have any copy of data backup at hand. What's worse, when you try to fix disk errors with Disk Utility, only to be told 'Error: Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk and restore your backed-up files.' What to do in this case? Actually, you still can get your files back with reliable external hard drive data recovery software, and iBoysoft Data Recovery for Mac is such a useful recovery tool.

iBoysoft Data Recovery for Mac is free external hard drive data recovery software, which can recover lost data from external hard drives that First Aid failed to repair and recover lost data from encrypted APFS external hard drives. What's more, when the disk is corrupted, formatted, unmountable, unreadable, or even erased, this software can still recover the lost files. This all-in-one recovery tool can restore files from emptied Trash, hard drives, SD cards, memory cards, USB flash drives, etc.

How to convert powerpoint into keynote. With this data recovery software, you can recover emails, photos, documents, videos, etc. on macOS 10.15 (Catalina), macOS 10.14 (Mojave), macOS 10.13 (High Sierra), macOS 10.12 (Sierra) and Mac OS X 10.11 (El Capitan), 10.10 (Yosemite), 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion).

Tutorial to recover lost data from the external hard drive

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

Step 2: Launch this program. Select the external hard drive that needs to be repaired and click 'Next'. The program will start scanning this drive for recoverable files.

Step 3: After the scanning process finishes, you can click the found files and preview.

Step 4: Choose what you want to get back and click 'Recover'. Call 0f duty modern warfare.

Having finished the hard drive data recovery with Mac data recovery software, you can fix this external hard drive by reformatting so that you can use it again.

If you can't repair the external hard drive by reformatting, probably the external hard drive has been damaged physically. In this case, you have to send it to an expert or replace it with a brand-new one.

Sep 21, 2020 • Filed to: Solve Mac Problems • Proven solutions

How Do I Recover Files from an External Hard Drive on a Mac?

In today's world, external hard drives have been widely used as supplementary mass storage devices for Mac. It is always an excellent way to keep your valuable photos, videos, and other files in an external storage device so that you can bring them anywhere. Then the 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?

When facing those annoying Mac external hard drive data loss issues, Mac users may ask: How do I recover files from a corrupted, broken or formatted external hard drive on Mac OS X? If you are lucky enough, you may have a backup copy of lost files, and you can quickly restore them from that copy. If not, you can still ask for help from a Mac external hard drive data recovery program.

Part 1. How to Recover Data from External Hard Drive on Mac OS X

To recover data from external hard drive on Mac OS X, you can take Recoverit Data Recovery for Mac as a try. This fascinating Mac external hard drive recovery software supports almost all brands of external hard drives, including Seagate, LaCie, Western Digital, Maxtor, Samsung, etc. It also supports recovering all types of files no matter whether they are deleted, formatted, or corrupted from an external drive. Moreover, this Mac data rescue software allows you to retrieve files from external hard drives, even if they are corrupted, broken, formatted, dead, crushed, or damaged.

Video Guide to External Hard Drive Recovery

Show all open windows on mac. This video tutorial demonstrates to you how to recover data from external hard drive on Windows. The steps are true of Mac OS X file recovery from the outer disk. You can also turn to the below text-based macOS recovery guide.

2. How to Retrieve Data from External Hard Drive on Mac

Download and install Recoverit data recovery on your Mac computer. Launch Recoverit Data Recovery for Mac and follow the next simple steps to perform external hard drive data recovery on Mac OS X.

1. Select external hard drive

In this step, you can choose a specific location where the files get deleted or lost. To recover data from Mac external hard drive, please select the drive letter for your external hard drive and click 'Start' to scan data.

1. Scan hard drive to search data

Recoverit will start an all-around scan. The 'All-Around Recovery' mode will deep dig into your Mac external hard drive and piece the bits of your files together on it. It might take a little long time.

1. Restore files from Mac external hard drive

Now you can preview and check the found contents in the window after the scan. Then select files you need and click 'Recover' to save them on your Mac.

Data Recovery Tips：

• To avoid recoverable files from being overwritten during the recovery, please do select a folder on your Mac rather than the external disk to save them.
• Scanned out of the photos, documents, video, audio, and other documents, display 'preview failed,' the material has been damaged, can not be restored.
• For the software does not support the preview of the file type, such as compressed files, installers, etc., only the final recovery, to know whether the file can be used frequently.
• Data recovery is not a panacea that can't guarantee 100% recovery successfully in any situation. Therefore, you should prevent data loss effectively with a good habit to backup your data timely.

Part 3: How to Repair External Hard Drive on Mac

To repair external hard drive on Mac, there are two options, Disk Utility and Terminal. Now, let's move on and take a look at how to fix external hard drive on Mac.

Repair External Hard Drive with Disk Utility

1. Go to Apple Menu > Restart. Restart Mac and hold 'Command + R' keys.
2. Click 'Disk Utility' > 'Continue' > 'View' > 'Show All Devices'.
3. Select the external hard drive you want to repair in the sidebar.
4. Click 'First Aid' > 'Run' if you get 'overlapped extent allocation.'
5. Disk Utility will repair your external hard drive on Mac usually.

Repair External Hard Drive with Terminal

1. Go to Applications > Utilities > Terminal
2. Type the command line: 'cd /Volumes' and 'ls.' Press 'Return' to get a list of hard drives.
3. Type 'diskutil verifyVolume xxx (external storage name)' and Return.
4. Type 'diskutil repairvolume /Volumes/xxx (external hard drive name)' and Return.

After repairing the external hard drive on Mac, turn to Part 1 to recover files from the external hard drive. With Mac hard drive data recovery software, at least 96% of your data stored on the external hard drive can be retrieved without any hassle and much effort. Also, it enables you to scan your external hard drive and preview files on your Mac before recovery.

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