We can do it following these steps: Step 1: Download and install DoYourData Super Eraser; then, run the software on our Mac. Download for Mac Download for. Step 2: Choose mode ‘Wipe Hard Drive’. Step 3: Select device or drive we want to format and click on the ‘Wipe Now ’ button. DoYourData Super. Step 1: Go Utilities Disk Utility. Step 2: Click the icon of unmountable USB flash drive on the left part of the window. Step 3: Click the Erase button on the top of the Disk Utility window. Step 4: Complete the related information (name, format, scheme), then click Erase button.

by Shirly Chen, updated on 2019-07-08 to Mac Data Wipe

USB drives and external hard drives on macOS Catalina are used for storing and backing up important data such as photos, videos, audios, images, notes, messages, music files, PDF files, Word documents, among other files. Sometimes, we delete some of these files because we do not need them, but they remain somewhere and can be retrieved from the same device or using a data recovery software. In some cases, we want to carry out this task in a permanent way, but we do not have any idea about how to do it. Here, we will show you how to permanently format and delete your files and so prevent a possible data recovery.

Three ways to format USB flash drive, external hard drive on macOS Catalina

There are many tools can help you format USB flash drive, portable hard drive, memory card or other storage device on macOS Catalina. Here, we will show you three ways to format USB flash drive, external hard drive, etc on macOS Catalina.

1. Format USB flash drive/external hard drive with Disk Utility on macOS Catalina

Disk Utility is a built-in disk management application on macOS Catalina. You can run it to format the USB flash drive, external hard drive on macOS Catalina. But, the formatted data can be recovered by Mac data recovery software.

2. Format USB flash drive/external hard drive with MacClean360 on macOS Catalina

MacClean360 also offers disk management tool, disk manager. This tool can help you securely and quickly format USB flash drive, external hard drive under macOS Catalina. The formatted data also can be recovered by Mac data recovery software.

3. Format USB flash drive/external hard drive and permanently wipe data on macOS Catalina

If we are planning to sell, donate or dispose our USB flash drive or external hard drive to another person, we should format them to clean up all data, even this is also an option if we want to recover their complete storage. Maybe, we do not know how to format our device properly and permanently to avoid retrieving our private files. here, we will help you choose the best way to format/wipe your device on macOS Catalina; you can use DoYourData Super Eraser for Mac, which is highly recommended by users.

DoYourData Super Eraser for Mac can help you format USB flash drive, External hard drive or other device on macOS Catalina. And it will permanently wipe all data from the USB flash drive or device. Once the USB flash drive/external hard drive is formatted by this software, all data on the USB flash drive/external hard drive will be gone forever, can’t be recovered by any data recovery method. So, before you format your USB flash drive or external hard drive with DoYourData Super Eraser for Mac, you’d better back up your data to a safe location.

Format Flash Drive Mac Catalina Island

The steps to format USB flash drive/external hard drive on macOS Catalina are pretty simple.

Mac Catalina Iso

Step 1: Download DoYourData Super Eraser for Mac.

Download and install this disk formatting tool for macOS Catalina. Then run it from Launchpad. And connect the USB flash drive or external hard drive with your Mac.

Step 2: Format and wipe the USB flash drive/external hard drive on macOS Catalina.

Choose mode “Wipe Hard Drive”, then choose the targeted device and click on “Wipe Now” button. Then the selected USB flash drive or external hard drive will be formatted and all data on the selected device will be permanently erased.

Format Flash Drive Mac Catalina Installer

The three ways above can help you securely and easily format USB flash drive, external hard drive on macOS Catalina. We strongly recommend DoYourData Super Eraser for Mac. It will help you format and wipe data before you sell, donate, or give away your hard drive, USB flash drive, memory card, digital camera, portable hard drive, etc.

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You can easily recover data from a formatted USB flash drive with EaseUS USB flash drive data recovery software. After you lost data after a quick format using Disk Utility or other disk formatting tools, feel free to download EaseUS Data Recovery Wizard.

Formatted USB Flash Drive Data Recovery software, free download

For a Mac user, he/she might format a removable disk for many reasons. It is necessary to format an external storage device, such as a USB flash drive, pen drive, and a memory card, to a proper file system, so that Mac OS X or macOS could recognize, detect or read data. But most of the time, disk formatting is used to fix hard drive errors, which could be resulted from file system corruption, virus infection, bad sectors, and other common usage issues.

Mac users format a USB flash drive, usually with the built-in Disk Utility application, and quite a lot users tend to use a third-party disk formatting tool. As introduced, formatting manners could be intentional or unintentional. We would create a backup of important USB drive data if we know this quick formatting is going to happen. But, if it's a careless or mistaken operation, formatting will erase data and you don't even have a backup at hand.

We like to use a USB drive to carry frequently used documents, pictures, movies, music and other file types. It's definitely a catastrophic disaster to lose a single file, let alone formatting would wipe all contents out at one time. When you're experiencing a complete data loss issue by formatting, don't wait for a second. Find a reliable Mac data recovery software to perform data recovery as soon as possible.

EaseUS Data Recovery Wizard has both Windows and Mac versions, and it has been serving worldwide users for over 10 years. It's a popular and capable recovery software in retrieving 100+ file types and present storage devices. It works seamlessly on the older Mac OS X operating system as well as the newer macOS operating system. Moreover, it has a free version that enables users to recover 2GB files for free. Prepare your USB flash drive, install the Mac free data recovery software, and start with the guide to recover data from the formatted USB drive. For Windows users, follow this link to recover formatted USB drive.

How to Recover Formatted USB Flash Drive

Step 1. Correctly connect your USB flash drive to your Mac. Launch EaseUS Data Recovery Wizard for Mac. Start selecting the flash drive and click 'Scan' to let the software search lost files on it.

Step 2. After a quick scan and deep scan, all files will be presented in the left panel in the scan results.

Step 3. Select files you want to recover and click the 'Recover Now' button. Don't save the recoverable files to the USB drive itself in case of data overwriting.

Data recovery software is a very competent helper when lost data, no matter it's formatted, deleted or hidden somewhere. However, don't put all your eggs in one basket because it's too risky. To double protect important digital data on a flash drive, pen drive, SD card or HDD, you need a regular backup. Nowadays, cloud storage, such as iCloud, Google Drive, and Dropbox, is a good place to sync files and keep a backup for Apple users. Besides, manually creating backups through Time Machine and third-party Mac backup and recovery software is a good idea, too.