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. Here are some steps you can follow: Also, if your Mac is set to show mountable drives, please ensure that you have selected all devices. 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. Mount through Disk Utility If the external hard drive still does not show up, you may need to access it through the Disk Utility.If the button is dimmed and you can't click it, skip this step for the disk, container, or volume you selected.To explore the Disk Utility User Guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field. After taking these steps, you should see the external hard drive appear in Finder. If you’re having problems with a disk, Disk Utility can check the disk and repair problems it detects. If you see it as an available choice, click on it to highlight the storage device.

If there is no Run button, click the Repair Disk button instead. Review along the left sidebar to see if your external drive appears.

Your Mac will permit you to delete the drive if you. In this example, the last volume on the disk is Macintosh HD - Data.Ĭlick Run to begin checking the selected volume for errors. Edit preferences and change settings Go to Finder and click on the Finder button in the menu bar at the top of the screen. do not permit you to format the drive or partition that contains the currently running operating system.

For each disk that you're repairing, start by selecting the last volume on that disk, then click the First Aid button or tab.

Disk not showing in disk utility mac