You can’t delete or erase your startup volume. When the operation is finished, click Done. If the APFS volume you want to erase isn’t a member of a volume group, click the Erase button to erase the selected volume. If the APFS volume you want to erase is a member of a volume group, click the Erase Volume Group button to erase all volumes in the group, or click the Erase button to erase only the selected volume. If there is an Ignore Ownership option, you can check that. Then select the gear at the bottom and Apply to enclosed items. If you want to change the format, click the Format pop-up menu, then choose an APFS format. Go a Get Info (command - I) on the hard drive and make sure you have read/write permissions. See the Apple Support article About macOS Recovery on Intel-based Mac computers.Įnter a new name for the volume, if desired. This no-nonsense approach makes it an ideal drive for a set-and-forget backup regimen, though you do have to format it for use with Time Machine. To erase the volume, you need to run Disk Utility in macOS Recovery. Or drag and drop your files to your Mac’s Bin. Right click and pick ‘Move To Bin’ from the menu. this may take some minutes, because you can overwrite files up to 35x :-) Im not deleting disk from my HD. and set desired options for deleting files. open the HD utility programm -> Application -> Utilities 4.

If the Erase button is dimmed, the selected volume can’t be erased because it’s in use. Double click on your WD Elements hard drive icon to open a finder window. not just delete your trash, delete it the 'secure' way. If Disk Utility isn’t open, click the Launchpad icon in the Dock, type Disk Utility in the Search field, then click the Disk Utility icon. In the Disk Utility app on your Mac, select the APFS volume you want to erase in the sidebar.

When you erase a volume, all the data on the volume is permanently erased, and the empty volume remains in the container.

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