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How to Format Inaccessible or Unmounted USB Flash Drive on Mac?

by Shirly Chen, 2018-09-12

“Hi, I can’t access to USB flash drive on my Mac. Is it possible to format the inaccessible USB flash drive on the Mac to fix the issue?” - Mars

There are many ways to make a USB flash drive inaccessible or dismantled, the most common are: read and write errors, viruses, formatting errors, inappropriate disconnection and even power failures. But even though a Mac can’t access the inside of the USB flash drive to manipulate the information inside, there are specially developed data recovery software for Mac that are responsible for thoroughly reviewing these damaged USB flash drive devices and recover their information, if you do not want to recovery, just learn how to format inaccessible or unmounted USB flash drive on Mac to fix this issue.

Although if the USB flash drive is no longer useful to us and we are going to discard it, it is important to take into account that other people can obtain this unit and by using these data recovery software they will be able to access the information contained in it. So it is important to format the USB flash drive before discarding it regardless of whether it is inaccessible or disassembled.

Best way to format inaccessible or unmounted USB flash drive on Mac

Although Disk Utility or other storage management tools will not be able to format the inaccessible or unmounted USB flash drive on Mac. There is a powerful tool that you can perform this task quickly and easily so that you can get rid of that damaged USB flash drive without having to worry that someone can recover your data.

DoYourData Super Eraser for Mac is the best tool to format inaccessible or unmounted USB flash drive on Mac. This disk formatting software for Mac is pretty simple to use. It not only can help you format the inaccessible or unmounted USB flash drive on Mac to fix error, but it also can help you permanently wipe all data on the inaccessible or unmounted USB flash drive. It is 100% safe, will never cause any damage to your Mac computer/USB flash drive.

Once the inaccessible or unmounted USB flash drive is formatted by DoYourData Super Eraser for Mac, you will get a brand new USB flash drive. Then you can reuse the USB flash drive without any error, or dispose the USB flash drive without worrying other people can recover your private data. Here are the steps of how to inaccessible or unmounted USB flash drive on Mac with DoYourData Super Eraser for Mac.

Step 1: Install and Download DoYourData Super Eraser for Mac.

First of all, download and install DoYourData Super Eraser for Mac. Then run the software from Launchpad.

Step 2: Connect the inaccessible or unmounted USB flash drive with your Mac.

Connect the inaccessible or disassembled USB flash drive to your Mac. DoYourData Super Eraser for Mac will list the inaccessible or unmounted USB flash drive on the main interface.

Step 3: Format and erase inaccessible or unmounted USB flash drive on Mac.

Select the "Wipe Hard Drive" option, select inaccessible or unmounted USB flash drive, then click on the "Wipe Now" button so that DoYourData Super Erase for Mac can format it correctly, and wipe all data on the inaccessible or unmounted USB flash drive.

format inaccessible or unmounted USB flash drive on Mac

Once the inaccessible or unmounted USB flash drive is formatted by DoYourData Super Eraser for Mac, all the errors will be fixed, and all data on the inaccessible or unmounted USB flash drive will be permanently erased. Just like you have reset the USB flash drive to factory settings.