(The View button in Disk Utility’s toolbar will expand the sidebar to show all devices.)Ĭlick the View button in the Disk Utility toolbar and select Show All Devices from the popup menu, or select Show All Devices from the View menu. Since you may need to use the First Aid tool on volumes as well as partitions, catalogs, and physical devices, it’s a good idea to change the sidebar settings to display all devices. Launch Disk Utility, located at /Applications/Utilities.ĭisk Utility’s default settings use a sidebar that only displays storage volumes. If you’re working with OS X El Capitan through macOS Sierra, you may find the instructions in How to Use macOS Sierra Disk Utility to Verify or Repair Disks a better fit.ĭisk Utility’s Sidebar in macOS High Sierra and Later The Disk Utility app underwent a few updates with the release of macOS High Sierra to support the APFS file system. If you’re using First Aid as part of a routine maintenance program, you should still have a working backup of any volume that you’ll be checking. We’ll start by going through the actual process of using First Aid, and then take a more in-depth look at the process we’ll also provide a few troubleshooting tips.īefore you use First Aid, make sure you have a current backup of the drive or volume you’re having issues with. Related article: How to Revert a drive from APFS back to HFS+ First Aid can actually be used on any file system that macOS supports, but APFS and HFS+ are the most popular, and the ones you’re most likely to encounter. In this guide, we’re going to take a look at using Disk Utility’s First Aid tool in macOS High Sierra to repair APFS and HFS+ file systems.
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