Install it just like you would any other Mac application.Download Disk Drill for Mac from its website.The entire recovery process can actually be summarized in just a few sentences: Provided you use a capable and user-friendly data recovery software application like Disk Drill for Mac, you have absolutely nothing to fear when it comes to recovering a formatted hard drive on Mac. The good news is that the three formatting processes leave most-if not all-data on the hard drive intact, making complete data recovery easily possible. During low-level formatting, the surface of the hard drive is marked to indicate the start of recording blocks. The way a hard drive is partitioned is completely in the hands of the user, but the same can’t be said about the first formatting process, called low-level formatting, because it usually happens in the factory. The information about individual partitions is stored in a special region on the hard drive, called the partition table. The disk partition is created prior to high-level formatting, during a process called partitioning, which divides the hard drive into one or more regions, called partitions, indicating where each partition starts and where it ends. This type of formatting is actually the last of three different processes that make a hard drive usable by the operating system and applications, and its purpose is to create a file system within a disk partition. When most people hear the term hard drive formatting, they immediately think of a process experts call high-level formatting. Learn more about reinstalling m acOS.While you don’t have to understand the ins and outs of the hard drive formatting process, knowing what has happened to your hard drive can help you successfully recover data from it. If you want your Mac to start up again from the volume you just you erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions.When done, quit Disk Utility to return to the utilities window.Optional: If you previously used Disk Utility to add internal volumes other than Macintosh HD, you can erase them individually using the same process.If this button isn't shown, click Erase instead. Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility.Click the Erase button in the toolbar, then enter the requested details:.Select Macintosh HD in the sidebar of Disk Utility.From the utilities window, select Disk Utility and click Continue.If asked, select a user you know the password for, then enter their administrator password.
Start up from macOS Recovery: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R.
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