Click Run to check and repair for disk errors. Select the disk or volume you want to repair in the left sidebar, and then click First Aid at the top. Choose View and choose Show All Devices at the upper left of this app. Go to Launchpad, find Other, and then launch Disk Utility. To do First Aid again, follow these steps. One of the most tried and tested solution is to repair this disk one more time. What can you do in these situations to fix this issue without data loss? Keep reading. Back up as many of your files as possible, reformat the disk, and restore your back-up files. Back up the disk and reformat it as soon as you can. You can open or copy files on this disk, but you can't save changes to files on this disk.
Sometimes, it would be followed up with these error messages: 'Disk Utility can't repair this disk' is one of the messages you will receive when First Aid failed. Now, what should I do to fix this error without losing data on my drive? Back up as many of your files as possible, reformat the disk, and restore your backed-up files'. It gives me message 'Error: Disk Utility can't repair this disk. I am in the midst of trouble where Disk Utility is failing to repair the drive.