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. For OS X El Capitan and up, these steps are not necessary.
Repairing disk permissions can help reset all permissions that may interfere with installation, patching, or game play.
- Navigate to /Applications/Utilities/ and open Disk Utility.
- Select the hard drive the game is installed on.
- Select the First Aid option.
- Click on the Repair Disk Permissions button.