Recover Data Lost due to Accidental FormattingAn internal or external Mac storage drive requires compatible files system format to be accessible in macOS. Format a Mac External Hard Drive Using Terminal4. By default, Macs use HFS, while PCs use NTFS, which are not.3. Format the Startup Disk in macOS Recovery ModeSince the PC and Mac are two different operating systems, they use different file systems. Your Windows will reboot from USB.2.Preparing the startup disk to reinstall macOS Formatting is helpful for: You may even need to manually format your internal or external Mac storage drive or volume in the compatible file system. MS-DOS (FAT) or exFAT format to make your external storage drive cross-compatible with both macOS and WindowsA new Mac with its built-in solid-state drive or hard drive comes pre-formatted with a file system that contains the macOS. Mac OS Extended format for macOS Sierra 10.12 or earlier APFS format for macOS Big Sur 11, Catalina 10.15, or Mojave 10.14 The next section discusses the correct way to format your Mac storage drive without data loss. DO NOT click the Initialize button unless it’s a new drive or you have recovered data from it. So, you end up losing your data.Also, when you connect a corrupt or unreadable external storage drive to your Mac, macOS will prompt you to initialize the disk. When your Mac storage drive has stored data on it, and you accidentally erase the drive in a new file system format, macOS removes all references to the data. Perfecting the storage drive in case Disk Utility fails to repair itBut storage drive formatting involves certain risks. Changing the file system format for cross-compatibility But you can’t format the startup disk while your macOS is running. Format the Startup Disk in macOS Recovery ModeIf you want to reinstall macOS or upgrade your macOS, you need to format your Macintosh HD startup disk. If you haven’t set up your Time Machine backup drive, you can set up the drive now.Read More: How to Set Up Time Machine on Mac 2. And, for Macintosh HD, the startup disk, you can use Time Machine to back up your macOS as well as its stored data. For an external or non-boot volume, copy all your valuable files and folders, and paste them to another external storage device.
Reformat Hard Drive For Windows And Mac Storage DriveIn the Terminal window, type diskutil list. Type ‘ terminal’ and hit Return to launch the Terminal application on your macOS. Press Command + Space Bar to open Spotlight. Why do mouse scroll wheel not work well on chrome for macAnd, Disk Utility doesn’t provide any option to undo the format. Recover Data Lost due to Accidental FormattingDid you accidentally format a wrong hard drive on your macOS? Or erased the Mac external storage drive without backing it up in the first place?Data loss can happen due to accidental formatting. Now, you can restore the backed up data to the storage medium. Here, replace the FS with the required file system format, DN with the name of the drive, and D# with the drive’s identifier.When the process completes, Disk Utility erases the storage drive to the correct file system format. Type diskutil eraseDisk FS DN D#. Ensure you have backed up all the data from the external drive. And why wait if the software has a 30-day money-back guarantee.Read More: How to Activate Stellar Data Recovery Professional on your Mac? ConclusionTo format your Mac startup disk or external storage drive safely, you must back up the drive before erasing it with Disk Utility in a compatible file system format. To save the files, you need to activate the software. Perform the following steps:Download and install the *trial version of Stellar Data Recovery Professional for Mac on your Mac mini, MacBook, or iMac.*The trial version of Stellar Data Recovery Professional for Mac software can scan the media and show preview of recoverable files. The tool supports a variety of hard drive brands, USB types (Thunderbolt, 3.0, 2.0), and Fusion Drives. But be careful while executing the Terminal commands, as any wrong operation can result in permanent data loss.Also, when you’ve formatted your Mac hard drive or SSD accidentally without having any back-up, use Stellar Data Recovery Professional for Mac, a specialized data recovery software to salvage your lost data.
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