by Shirly Chen, updated on 2019-05-10 to Mac Data Wipe

Connecting Flash Drive to MAC. This is the first step that a user will take. Connecting USB to Mac is. If you want to use your USB stick with an Apple Mac, you will need to restart or power-on the Mac with the USB stick inserted whilethe Option/alt(⌥)key is pressed. This will launch Apple’s ‘Startup Manager’ which shows bootable devices connected to the machine. Your USB stick should appear as gold/yellow and labelled ‘EFI Boot’.

Before we recycle, lend, sell or abandon a USB flash drive, we should remove all the personal data on the USB flash drive. Formatting or reformatting is the efficient and secure way to remove all data on the USB flash drive. It is very simple to format USB flash drive on Windows PC. However, it is not easy to format the USB flash drive under Mac OS. Actually, if we want to format a USB flash drive under Mac OS, we should find USB flash drive formatting software at first. Here are top 5 USB flash drive formatting software tools for Mac to help in formatting, reformatting, erasing USB flash drive under OS X or macOS.

Best 5 USB flash drive formatting software for Mac

USB flash drive formatting software for Mac can help us format, reformat or erase USB flash drive on Mac. Here are top 5 USB flash drive formatting software for Mac on the market to help us securely & efficiently format USB flash drive under Mac OS.

NO.1 USB drive formatting software for Mac – DoYourData Super Eraser

DoYourData Super Eraser for Mac is a powerful & easy-to-use data erasure software. It will quickly format the USB flash drive on Mac and permanently erase all data on the USB flash drive. Once the USB flash drive is formatted by DoYourData Super Eraser for Mac, all data will be lost forever. You will get a brand new USB flash drive. It is strongly recommended to format USB flash drive on Mac with DoYourData Super Eraser for Mac before you sell, donate, lend, give away your USB flash drive. Free download DoYourData Super Eraser for Mac >>

NO.2 USB drive formatting software for Mac – Disk Utility

If you only want to format the USB flash drive on Mac, Disk Utility is the best choice. Just run this built-in application on your Mac, and use it to erase the USB flash drive. However, the data on the formatted USB flash drive could be recovered by data recovery software.

NO.3 USB drive formatting software for Mac – Start Menu for Mac

This start menu for Mac allows Mac users to format hard drive or external device on Mac. Download and install it on your Mac. Launch it from Launchpad, 'Disk Manager' can help you format USB flash drive on Mac. The formatted data also can be recovered by data recovery software.

NO.4 USB drive formatting software for Mac – Disk Wiper for Mac

Disk Wiper for Mac is another data erasure application. It will format USB flash drive under Mac OS and remove all data information on the USB flash drive permanently.

NO.5 USB formatting software for Mac – MacClean360

MacClean360 is all-in-one Mac cleaner and manager. It offers a tool “Disk Manager”. It can help Mac users securely and quickly format USB flash drive under Mac OS. Very easy to use and 100% safe.

The top 5 USB flash drive formatting software for Mac can help us easily and securely format USB flash drive under Mac OS. Just select one of them to format USB flash drive under Mac OS. DoYourData Super Eraser for Mac is the best USB flash drive formatting software for Mac. It is strongly recommended to use this data formatting software to format USB flash drive under Mac OS. Then the USB flash drive could be able to securely reused, recycled, resold, donated, etc. Free download DoYourData Super Eraser for Mac here:

Related Articles

Permanently and securely erase data from hard drive or external storage device under Mac OS with certified data erasure methods.

Hot Articles

It is terrible when you plugged in a USB flash drive to your Mac computer but got the error 'The disk you inserted was not readable by this computer'. Once the USB flash drive becomes unreadable/corrupted, you will be unable to access the data stored on it. Relax. This tutorial will show you how to repair/fix unreadable/corrupted USB flash drives on Mac and also recover lost data from the unreadable USB flash drive withiBoysoft Data Recovery for Mac, according to your situation.

Problem - USB flash drives not readable on Mac

A USB flash drive or other removable data storage medium is widely used for storing and transferring data from an iMac, MacBook or Mac Mini. Generally, when you insert in a USB flash drive, it will be mounted in Disk Utility and on Desktop. Then you can read and write to the USB drive.

However, what a very distressing situation if your USB flash drive is not readable/recognizing/working/showing up on Mac, especially when you desperately need to access some data stored on it. A Mac user has reported this issue in forum:

'I have a 32 GB USB which has suddenly come up with a message statingthe USB flash drive is not readable by this computer (Apple MacBook Pro). I do not want to initialize it as this will result in loss of my data. How can I fix the unreadable USB on Mac and recover lost data?'

Why is USB flash drive is not readable on Mac?

Actually, USB drives are susceptible to such kind of corruptions, as these drives are usually connected to any system. Here are some of the common reasons behind this issue:

• > Severe virus infection to your USB flash drive. A virus or a Trojan may delete critical system elements, thus disabling the OS and making the drive unrecognized.
• > Sudden power surge or abrupt removal of USB flash drive. The flash drive was removed improperly from the computer which led to the corruption of its partitions.
• > Faulty USB port or cable. If the USB port or cable of the computer is not working properly, your Mac computer won't recognize or read the flash drive.
• > Incompatibility issues between the file systems of both flash drive and the Mac computer. In case the USB flash drive is formatted with the NTFS file system which isn't compatible with macOS.
• > Out-of-date drivers. If drivers are out of date, the Mac operating system and your applications on the computer will fail to interact with all hardware devices. So the USB flash drive becomes unreadable.
• > The USB drive is physically damaged. If your USB drive is seriously broken by hitting, dropping, shaking, etc., there is no USB repair tool or USB flash recovery software for Mac can help you.

How to fix/repair the unreadable/corrupted USB flash drive on Mac?

Solution 1: Check the USB port or cable

Check that USB port on your Mac. Plug into a different USB port or plug another device in and see if that works OK. Also, make sure that it's not faulty. Try using a different USB cable with the USB drive to see if that fixes the non-readable problem.

Solution 2: Update or reinstall the driver

When you are having problems with a device, you should check if any updates are available please do the following:

Step 1: Click on the Apple in the upper left corner of the screen.

Step 2: Select 'Software Update...'

Step 3: Any updates available will be listed and able to be downloaded or you will be told your software is up to date.

Solution 3: Check the file system format

If the files system is NTFS format, it's not hard to understand why the USB flash drive is unreadable on Mac. To make sure, you can go to Disk Utility and check its file system. To fix the incompatible issue, you can download and install an NTFS driver to read and write NTFS drives on Mac.

Solution 4: Fix the unreadable USB flash drive with First Aid

Disk Utility's First Aid is capable of repairing minor errors of disks, such as fixing a USB flash drive that is not readable/recognizing/working/showing up on Mac.

Step 1: Launch Disk Utility from Utilities.

Step 2: Select the unreadable USB drive from the sidebar.

Step 3: Click First Aid at the top of the window, and then wait until the reparation process finishes.

Solution 5: Reformat the unreadable USB drive

IfFirst Aid failed to fix the unreadable drive, it indicates that the USB drive might have severe errors beyond its capability. Then the best solution is to reformat the unreadable USB drive and make it readable or usable again. This process will wipe all data stored on the USB drive. So, please make sure you have a backup copy, or, follow the steps torecover lost data from the unreadable USB drive with iBoysoft Data Recovery for Mac.

iBoysoft Data Recovery for Mac is afree USB drive data recovery tool that supports recovering deleted videos, documents, photos, music and much more files from unreadable USB flash drives, Mac hard drives, external hard drives, SD cards, memory cards and other storage devicesmacOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/Sierra 10.12 and Mac OS X 10.11/10.10/10.9/10.8/10.7.

Besides, iBoysoft Data Recovery for Mac also recovers deleted files from flash drives, recover lost data from formatted, inaccessible, unmounted, corrupted drives. It

Steps to recover lost data and fix the unreadable USB drive on Mac

Step 1: Connect the unreadable USB drive to Mac.

Step 2: Launch iBoysoft Data Recovery for Mac.

Step 3: Select the unreadable USB and click the Next button. The program will start to scan for lost files.

Step 4: Preview the scanning results and choose files you want to recover, and then click Recover button to get those files back.

Step 5: Launch Disk Utility and reformat the unreadable USB drive on Mac.

Hopefully, the USB drive will be readable now.

Solution 6: Send the unreadable USB drive to a local technician

Sometimes, the unreadable USB drive can't be fixed by reformatting. In this case, the unreadable USB drive is probably damaged physically, and you have to ask a local technician for help.

Bonus tips: Firstly, make sure that your USB flash drives don't become unreadable/corrupted in the future by always properly unmounting the disk properly after using it.

Secondly, download install an anti-virus program and check your computer and USB drive for virus or malware regularly.

Moreover, keep the driver and the Mac computer updated. The last and most important thing is to remember backing up important files as it is the golden rules to avoid data loss.

If unfortunately, you have lost data on your Mac computer or any other storage media, you can rely on iBoysoft Data Recovery for Mac. Just download this program and get all lost data back.

Conclusion

Wish you have fixed/repaired unreadable/corrupted USB on Mac with these solutions above. These effective solutions also can be used to fix USB not recognizing/working/showing up on Mac.

Flash Disk For Mac Windows 7

Which solution really helps you out? Do you have any other great solution to fix this issue? Please don't be hesitate to share them with us.

Flash Disk For Mac Os

Still have questions?