Here's a stepwise solution to fix Disk Utility first aid failed issue like a pro. In the end, you can restore the backup data and start using your Mac the usual way. Once it is done, you can reformat the disk or fix the root issue behind it. Firstly, you need to back up the existing data on the disk as it might stop functioning anytime. Ideally, it doesn't take a lot of effort to fix the Disk Utility can't repair disk issue. Steps to Fix the 'Disk Utility Can't Repair This Disk' Error The disk might have a bad sector or could be corrupted by a malware.The data in the disk could be corrupted.The disk could be removed while performing the first air operation.You might be running an outdated version of macOS.Chances are that your hard drive could be damaged beyond the scope of repair.The firmware could be corrupted, leading to the Disk Utility issue.Ideally, it can happen due to the following reasons: There are times when the Disk Utility first aid feature is failed. It can be used to fix various kinds of issues related to a hard drive without undergoing any data loss.

The 'First Aid' option is one of the most widely used features of Disk Utility. Ideally, Disk Utility can help you create or merge partitions, erase a hard drive, unmount it, and even repair it. What Is Disk Utility?ĭisk Utility is an inbuilt utility application in Mac that helps us manage its internal or external hard drive. Part 4: Tips for Using Disk Utility and Mac Hard Driveīefore we get into the details and learn ways to fix Disk Utility that can't repair the disk, let's quickly know what Disk Utility is all about and the common reasons for this error.Part 3: How to Recover Data After Mac Disk Repair?.Part 2: Steps to Fix the 'Disk Utility Can't Repair This Disk' Error.Part 1: Why Disk Utility Fails to Repair a Disk?.

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