Any drives not appearing in the sidebar cannot be edited by Disk Utility. Try disconnecting and reconnecting it if necessary.

If you cannot find your drive there, ensure it is working, connected to power, and plugged into a compatible port. The main pane to the right shows information about the drive which you currently have selected.Ģ) Locate the disk which you want to edit in the left-hand sidebar. The sidebar on the left shows your connected drives, with their sub-partitions. Check what you’re doing at each stage, and have any critical data backed up first.ġ) Launch Disk Utility from /Applications/Utilities, or via Spotlight. This guide uses macOS’s built-in disk management program, Disk Utility.īefore we go any further, remember that manipulating drives, and especially removing partitions, is a process that goes hand in hand with removing the data on them. Following on from our guide on creating and disk partitions on macOS, today we’ll cover safely removing them, including in what situations it involves loss of data.

Mac disk image tb