The picture below shows a Disk Utility interface on macOS 11 Big Sur.Ĭlick View > Show All Devices, then all the detected internal or external drives and disk images will appear on the left sidebar, beginning with the startup disk. The position of icons may look slightly different on your Mac running a different operating system. If your Mac fails to boot up, or the options on the toolbar are dimmed, you need to first boot into Mac Recovery Mode to access Disk Utility from the macOS Utilities window.īefore diving into its essential functions, let's go through the items listed on its interface.

It looks like a disk going through a stethoscope. If your Mac functions well, you can find it in the 'Other' folder of your Launchpad. There were two utilities in the classic Mac OS: Disk Utility and Disk Copy, and it was not until Mac OS X Panther that they merged to the nowadays Disk Utility.

Repair hard drives using Disk Utility First Aidĭisk Utility, a built-in disk manager on Mac that can be accessed with or without your Mac booting up, can repair, restore, partition, and erase internal disks and external storage devices.

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