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.
Deep Data Recovery 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.
Step 1. Correctly connect your USB flash drive to your Mac. Launch Deep Data Recovery for Mac. Select file types and click "Next" to start.
Step 2. Start selecting the flash drive and click "Scan" to let the software search lost files on it.
Step 3. After a quick scan and deep scan, all files will be presented in the left panel in the scan results.
Step 4. Select files you want to recover and click the "Recover" 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.