For the PC equivalent, visit our Running ScanDisk & Defrag guide.. Many common hard drive or OS problems on a Mac can be resolved by repairing your disk permissions. For OS X 10.10 Yosemite and earlier, please use the steps below.

Running the Repair Disk tool from within Disk Utility may also help, and for more solutions check out our How to speed up your Mac guide. Finder keeps crashing after installing macOS 10.14 Mojave . Can't repair disk permissions | MacRumors Forums Jun 03, 2013 Running ScanDisk and Defrag - Blizzard Support

How to Repair Permissions on Mac | Mac Expert Guide

The disk utility app has long contained the ability to verify and repair disk permissions on a mac, but in the latest versions of os x this ability has been removed.that doesn’t mean you can’t verify permissions and repair permissions in os x el capitan 10.11 and later however, you just need to turn to the command line to do so.

Dec 19, 2015

Jan 20, 2011 · This applies to Mac OS X 10.5, 10.6, and 10.7. It may also apply to other versions, but I can not verify that. In todays video we will show you how to Verify and Repair Mac OS X disk permissions To that end, Disk Utility as well as the corresponding diskutil command-line utility lost the ability to repair permissions. Usage. In systems prior to OS X El Capitan, a permissions repair can be performed by selecting a startup volume and clicking the