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.

Disk Permissions

Repairing disk permissions can help reset all permissions that may interfere with installation, patching, or game play.

  1. Navigate to /Applications/Utilities/ and open Disk Utility.
  2. Select the hard drive the game is installed on.
  3. Select the First Aid option.
  4. Click on the Repair Disk Permissions button.