
Select the target disk that you want to encrypt.Therefore, copy all needed files to another storage device first. Please be noted that you have to erase the device first before you encrypt the device with a password in Disk Utility. Related: How to Format a USB Flash Drive on Mac or Windows 10/11 PC Before you do this, you should back up all needed data to another device beforehand. You can choose a preferred file system format to reformat the volume for reuse. In Disk Utility, you can also select the target drive or partition and click the Erase button to wipe everything on the partition. To delete a volume, you can click the “-” icon in the toolbar to continue. You can choose a preferred file system like APFS/exFAT/FAT for the volume and click the Format button to format the new volume. Enter the size of the new volume and click OK to create a new volume. You can select the target disk and click the “+” icon. Click Run to start checking and repairing the corrupted disk.Select the target disk or volume from the left sidebar.

Follow one of the ways above to open Disk Utility on Mac.If you think your Mac disk or external disk drives have problems, you can run First Aid in Disk Utility to repair your disk.

Check how to use Disk Utility to repair, create, delete, format, erase, encrypt, restore, mount, or unmount a disk below.


Type disk utility or diskutil in the Spotlight Search and press Enter to quickly launch the Disk Utility app on Mac. Open Disk Utility with SpotlightĬlick the Spotlight icon at the top-right corner or press Command + Spacebar to launch the Spotlight Search. Also Read: How to Turn On/Off AirDrop on Mac or iPhone for File Transfer How to Open Disk Utility on Mac – 4 Ways Way 1.
