Click on the вЂњMountвЂќ button on the toolbar.Select the external hard drive in the left list in Disk Utility.However, if somehow macOS fails to mount the drive, you can also mount the drive yourself. MacOS automatically mounts the inserted drive by default as soon as it detects the drive. Here are the methods you can try to mount on your hard drive. You cannot open the drive and access the files on it. If the external hard drive is finally detected, but looks gray, it means that it is not mounted and, as a result, will not be displayed on the desktop or in the Finder. A damaged or dusty USB port or cable may cause macOS to not detect the USB drive. Now you can verify that the USB port and cable to which the hard drive is connected are working. If you donвЂ™t even see that the external hard drive is listed in Disk Utility, the computer has not yet detected the drive.

But before you can perform any of the actions mentioned above, the drive must be listed in the left pane. This is a built-in application with which you can mount, unmount, erase, partition, and restore volumes. If you are new to Disk Utility, it is highly recommended that you learn more about it if you continue to use the Mac. When problems arise with a disk, regardless of the internal disk or removable disk, Disk Utility is the first place you need to check. If nothing happens after connecting the external hard drive to the Mac, this article will help you find possible solutions for displaying the drive correctly. By default, after connecting an external drive to a Mac, it automatically appears somewhere on the desktop, in the left column of the Finder and in the left column of Disk Utility.

Mac internal hard drive will not mount