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How to Permanently Erase Deleted Data from USB Drive on Mac?

by Shirly Chen, 2018-06-13

“Hi, I am a Mac user. I have an 8GB USB flash drive. Yesterday, I deleted some work documents on this USB flash drive. But I found I still could recover these deleted documents with Mac data recovery application on my Mac. Is it possible to avoid the deleted file recovery? I want to permanently erase the deleted documents from the USB flash drive, what should I do?” – Mertens

When we are going to dispose or lend an old USB flash drive, we may need to permanently erase our private data – such as the already deleted photos/documents, etc. Mac users can use Disk Utility erase the USB flash drive, but they don’t know how to permanently erase the already deleted data on the USB flash drive. Now, there are thousands of free data recovery software can easily find the already deleted/formatted data on the USB flash drive. Is there any way to permanently erase deleted data from USB flash drive on Mac? The answer is YES. In this article, we will show you an easy way to wipe deleted data from USB flash drive under Mac OS.

Download USB flash drive data eraser for Mac

In order to permanently erase deleted data from USB flash drive on Mac, you have to download USB flash drive data eraser for Mac. DoYourData Super Eraser for Mac is such tool which can help you permanently wipe already deleted/formatted data on USB flash drive under Mac OS. It can find all deleted data on the USB flash drive and erase them, then overwrite the storage space of the deleted data with blank data – so it can 100% avoid data recovery. Just download DoYourData Super Eraser for Mac here:

How to permanently erase deleted data from USB flash drive on Mac?

DoYourData Super Eraser for Mac is pretty simple to use. When you install it, just run it from Launchpad. Then follow the steps below to permanently erase deleted data from USB flash drive on your Mac.

Step 1: Connect USB flash drive with your Mac.

Step 2: Open DoYourData Super Eraser for Mac, you will see three data erasure modes: Erase Files/Folders, Wipe Hard Drive and Wipe Free Space. In order to permanently erase deleted data from USB flash drive on Mac, just choose this mode “Wipe Free Space”.

Step 3: Click and choose the USB flash drive, then click on “Wipe Now” button to start erasing the free space of the USB flash drive – all the deleted/formatted data on the USB flash drive will be permanently erased.

permanently erase deleted data on USB flash drive for Mac

Once the process gets finished, all the deleted/lost data on the USB flash drive is gone forever, can’t be recovered by any data recovery software. This data erasure mode will not affect the existing data on the USB flash drive.