Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk. You need to check each file in the list of affected files. If Disk Utility has reported “overlapped extent allocation” errors, two or more files occupy the same space on your disk at least one of them is likely to be corrupted. If Disk Utility tells you the disk is about to fail, you’ll need back up your data and replace the disk, Sadly, you won’t be able to repair it. Otherwise, go to the “how to repair a storage device” section below. You can click Show Details to see more information about the repairs. If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. Disk Utility will try to repair what it can and warn you about errors it found that it can’t fix. ° Once complete, you’ll see a drop-down showing the status click this to explore. ° Open Disk Utility (Finder > Applications > Utilities). To check and repair a disk, first run First Aid on each volume and container on the storage device in turn, then run it on the storage device itself. You don’t have access to it when you’re diagnosing problems on your Mac’s main drive. Of course, it can’t fix ALL problems, but it’s certainly a tool when you’re having issues.īy the way, you may want to print this tutorial so you can refer to it later. In the classic Mac OS (pre-Mac OS X), similar functionality to the verification features of Disk Utility could be found in the Disk First Aid application.ĭisk Utility can fix certain disk problems such as (as Apple notes) multiple apps quitting unexpectedly, a corrupted file, a wonky external device, or the refusal of your Mac to power up. About Disk Utilityĭisk Utility is a tool for performing disk and disk volume-related tasks in macOS. Let’s look at how to repair a storage device that you use with your Mac running macOS Monterey. You can use the Disk Utility in macOS to repair a variety of problems.
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