How to recover data from corrupted USB flash drive on Mac?

By Molly | Posted to Mac Data Recovery, updated on May 8th, 2019 |

Summary: When the USB flash drive is corrupted and you can’t access data on this drive, you can recover data from the corrupted USB flash drive with USB flash drive data recovery software, iBoysoft Mac Data Recovery on macOS Mojave 10.14, High Sierra 10.13 and on below OS X versions easily.

Table of contents
1. Video tutorial to recover files from corrupted/unreadable USB flash drive
2. How to recover data from corrupted USB flash drive on Mac?
3. How to repair corrupted USB flash drives?
4. How to avoid USB flash drive corruption?

I would like to know how to recover files from a USB flash drive. Two days ago, I saved a PowerPoint file to a flash drive (2 GB Dane Elec) (v.2011) on my MacBook Pro, but the next day I plugged it into my MacBook Pro and got a message that the drive was unreadable. It is a USB flash drive that I use regularly and I want to know how to recover those files on the drive. I am reluctant to format it because I don't want to wipe all my files. Any thoughts, any software that can recover the files?

- A case from the Apple Community

Almost everyone uses USB flash drive, or Pen drive because they are portable and compatible with many electronic devices. However, USB drives are likely to go corrupted as well. For instance, usually, you can read and write to your files by simply inserting the USB drive into the USB port, but this time your Mac said, "The disk you inserted is not readable by this computer." In this case, your USB flash drive could be corrupted due to file system corruption, improper ejection, virus and malware infection, or even physical damages, etc. But you can calm down now because this article will show you how to recover data from corrupted USB flash drives on Mac with ease.

corrupted USB flash drives

Video tutorial to recover files from corrupted/unreadable USB flash drive

The video below is a tutorial to recover files from corrupted USB flash drive, and it can also be applied to external hard drive and SD card data recovery.

How to recover data from corrupted USB flash drive on Mac?

The best USB flash drive data recovery software

iBoysoft Mac Data Recovery is professional USB flash drive data recovery software for Mac, which is able to recover videos, images, documents, music files, emails, etc. from USB flash drives easily. Whether the USB flash drive is corrupted, formatted, unreadable, unmountable, or unrecognizable, this software can restore the lost files. Moreover, this USB flash drive data recovery software can also recover deleted files from USB drives and recover data from emptied Trash.

It is fully compatible with 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), supporting data recovery from APFS, encrypted APFS, HFSX, HFS, HFS+, exFAT and FAT32 formatted USB flash drives.

Guide to USB drive data recovery on Mac

Step 1: Download, install and launch iBoysoft Mac Data Recovery.

Step 2: Select the corrupted USB flash drive and click "Next" to start scanning.

Recover data from corrupted USB flash drive on Mac with iBoysoft Mac Data Recovery

Step 3: Find your files in the scanning results and double-click to preview them.

Recover data from corrupted USB flash drive on Mac with iBoysoft Mac Data Recovery

Step 3: Choose files you want to get back and click "Recover".

Tips for recovering data from a USB flash drive:
1. When you realize that your files are gone or your USB flash drive is corrupted, stop using this drive immediately in case improper operations overwrite the lost files.
2. Remember that you have the chance to recover lost files as long as your drive is not physically damaged.
3. Use read-only data recovery software like iBoysoft Mac Data Recovery to retrieve your files before sending it to a data recovery lab, as it cost less with high recovery success.
4. To avoid losing data again, you'd better save the recovered files to another healthy drive and make a copy of data backup necessarily.

How to repair corrupted USB flash drives?

After recovering data from the corrupted USB flash drive, you can go ahead to fix and repair the corrupted USB flash drive without worrying about data loss. Here are some DIY repair solutions that you can have a try.

Solution 1: Repair corrupted USB flash drive with First Aid

First Aid in Disk Utility is a free disk repair tool, which can fix many minor disk errors, for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn't work properly, etc.

Step 1: Go > Utilities > Disk Utility.

Step 2: Click "Show all devices" in View option to list your corrupted USB flash drive.

Step 3: Select your USB drive in the left sidebar and then click on "First Aid" on the top.

Step 4: Click "Run" to fix disk errors on this drive.

First Aid on corrupted USB flash drive on Mac

Solution 2: Repair corrupted USB flash drive by reformatting

If First Aid failed to repair this USB drive or the external drive is greyed out in Disk Utility, you can try to reformat this USB drive since you have recovered your files and you have no need to worry about data erasure.

Step 1: Go to Utilities and find Disk Utility to launch.

Step 2: Select your USB drive in the left sidebar and then click on "Erase" on the top.

Step 3: Fill in the necessary information like name and format and then click "Format".

How to avoid losing data due to USB flash drive corruption?

When data was recovered from the corrupted USB flash drive, you'd better follow the suggestions to prevent data loss from USB flash drive corruption again in future.

how to prevent data loss form corrupted USB flash drives

1. Always remember to back up important data in different places like cloud, a third storage device, etc.

2. Be sure to eject a USB flash drive safely and properly.

3. Before connecting a USB flash drive to Mac, please ensure the safety of computer environment.

In a word, having a copy of a data backup is always a better choice than data recovery software when the USB flash drive is corrupted

Molly

Molly is an editor @iBoysoft who frequently shares useful tutorials about data recovery for Windows and Mac.

Scroll down for the next article Scroll down