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If you used Disk Utility from macOS Recovery, you can now restart your Mac: choose Apple menu > Restart. The order of repair in this example was Macintosh HD - Data, then Macintosh HD, then Container disk4, then APPLE SSD. Keep moving up the list, running First Aid for each volume on the disk, then each container on the disk, then finally the disk itself. Its straightforward to run a check on your Mac with Disk Utility. If youre facing a problem with your startup disk, youll need to run First Aid from Recovery Mode well cover this in just a moment. If you're asked for a password to unlock the disk, enter your administrator password.Īfter Disk Utility is done checking the volume, select the next item above it in the sidebar, then run First Aid again. After analyzing the disk directory, First Aid will determine if it can repair any detected damage.Select the volume you just created (this is the sub-entry under the drive entry) from the left side list.
WHAT IS DISK UTILITY USED FOR ON MAC MAC OS
Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
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For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab.