While Disk Utility or third-party disk utilities can usually correct directory corruption, they cannot repair corrupted files. This practice should significantly minimize the potential for data loss to new data or changes to existing data since the last backup was performed. If you value your data, you have implemented a comprehensive Backup and Recovery solution and use it regularly, preferably backing up everything on a daily basis. Hard drive failures, bad sectors, and directory corruption are serious problems as these can result in data loss. The following are potential causes of disk, permission, or cache corruption. This FAQ, derived from our book, Troubleshooting Mac OS X, will help you to address these issues under the following versions of Mac OS X:
The directory of your Mac OS X startup disk.
Resolving Disk, Permission, and Cache CorruptionĪ variety of Mac ® OS X problems can be caused by corruption in any or all of the following three areas: