Repair a storage device on Mac

Are there some disk problems on your Mac? Want to use Disk Utility to fix them but receive an error message "Disk Utility can't repair this disk"? This post will walk you through how to quick and effectively fix this issue.

Disk Utility, developed by Apple, is a comprehensive system utility for performing disk and disk volume-related tasks on the Mac operating systems. These tasks include formatting, partitioning, erasing, cloning disks, repairing a damaged disk, etc. When certain disk problems happen, to repair this disk using Disk Utility will be a good choice.

However, sometimes you may receive the error message "Disk Utility stopped repairing 'Macintosh HD'/disk1s2/External HDD, etc. Disk Utility can't repair this disk".

Usually, this problem may not only happen on Macintosh HD but also on an external hard drive in Mac Mavericks, Yosemite, EI Capitan, or Sierra.

Actually, the above message won't show up in normal circumstances of disk errors. But if the hard drive is beyond the repair scope of Disk Utility, for example, file system gets corrupted, the issue appears.

Well then, what should you do to fix Macintosh HD, external hard drive or another disk that Disk Utility can't repair? Here are some solutions for you.