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1. #Mac hard drive not mounted how to
2. #Mac hard drive not mounted mac os
3. #Mac hard drive not mounted mac

How to Format an External Hard Drive on Mac? If your external hard drive still can't be mounted in Disk Utility after you perform First Aid, or if Disk Utility can't repair this disk, your drive should have some serious errors like file system corruption. Solution 3: Reformat the unmounted external hard drive Select First Aid in the top center and click Run. Select the unmountable external hard drive on the left sidebar.

#Mac hard drive not mounted mac

Go to Utilities and launch Disk Utility on your Mac computer.

#Mac hard drive not mounted mac os

Note that you should recover data from the unmountable external hard drive without a backup before running First Aid.įollow the instructions and repair the external hard drive that is not accepted by your macOS or Mac OS X. You are advised to run the tool more than once to ensure you are receiving a consistent result. First Aid is a very simple tool that is built in your Mac, and it is able to detect and repair directory damage and other disk errors. The second suggestion is First Aid in Disk Utility if you are unable to mount the external hard drive on Mac. Solution 2: Repair this unmountable external hard drive with First Aid But if the Mount option is grayed out and you can see this external hard drive in Disk Utility, you can try another solution then. In this case, you need to send it to a local data recovery service. However, if you find that your external hard drive is not showing up in Disk Utility (not a single volume but the whole disk disappears), it is very likely that your disk is suffering some physical damage. Select Mount in the top center of Disk Utility. Choose the grayed external hard drive in the left sidebar. Click on the "Show All Devices" in the View option to list connected drives. Click Go at the upper left of your desktop and go to Utilities, then launch Disk Utility on your Mac computer. Here is how to mount an external hard drive on Mac: If you can't find the external hard drive on the desktop or in the Finder, you can try to make the disk online manually in Disk Utility (a native disk management tool in your Mac).

Solution 1: Force mount this external hard drive in Disk Utility If Mac could not mount the external hard drive on the desktop still, let's troubleshoot this issue with the following solutions. When your external hard drive does not appear on the desktop, you can open Finder, choose "Preference" (or press Command +, ) and check "External disks" both in the General tab and in the Sidebar tab to show your external hard drive on your Mac computer. However, if they try and plug in the external hard drive normally, the Mac doesn't recognize the disk. Strange but true, some users found that their external will mount properly when they plug it in exceptional slow motion. Re-plug your external hard drive to another port or try another USB cable.Ī faulty connection, though it is foolproof, might be the key fix if the LaCie thunderbolt drive is not mounting, in that users always forget to check if the port is wobbly or if the cable is broken. In case you miss anything necessary, you can first have some basic checks as follows:ġ.

First, try some simple tricks to mount an xternal hard drive on Mac Hopefully, you'll be able to open this external hard drive on Mac again. To access your external hard drive on Mac, try solutions suggested in this part one by one. Fix external hard drives not mounting issue on Mac Now, let's make the external disk accessible on Mac.

If not, recover important files from this unmountable external hard drive first to avoid data loss. Check if you have a copy of a data backup. Any further operation is very likely to overwrite your original files and make them unrecoverable.ģ. Do not run First Aid to directly repair the disk if you didn't restore data from it or back up it. Reformatting will wipe the data on this disk and cause serious data loss.Ģ. Do not go straight to reformat this not-mounted external hard drive unless you've restored data from it or backed up it before. Dos and Don'ts When External Hard Drive Not Mounting on Macīefore you go further, it's better to know what you can do and can't do.ġ. Note: You need to save the recovered files to another usable drive.Īfter having successfully restored all data on this drive, you can set out to erase this external hard drive to fix the disk not mounting on the Mac issue.