As noted in Knowledge Base article #25770, the version of Disk Utility (10.5.1) included with Mac OS X 10.4.2 can fixed overlapped extent allocation errors -- problems with disk directory structure ...

Repair Disk isn’t the first option you should choose if your Mac is ailing, but it is helpful when (for example): Performance has degraded Data is missing You are experiencing degraded system ...

Yesterday we noted Apple's release of Mac OS X 10.2.2, which delivers a journalling filesystem and other fairly significant enhancements. While most users experienced a smooth upgrade and immediately ...

Mac OS X version 10.5 Leopard provides the most recent version of the Macintosh operating system that runs on many PowerPC-based Apple computers. Like previous and later versions of the Mac OS, ...

Your Mac has begun showing signs of trouble. Perhaps you frequently get errors when trying to open or save files. You suspect a problem with the hard drive. Before panic sets in, you want to launch ...

When simple measures—such as restarting—fail to patch up your Mac, it may be time to call on Disk Utility’s First Aid tools. (Not sure what those basic measures are? See our Leopard Troubleshooting ...

OS X offers a very nice graphical user interface to verify and repair your hard drive, located in the Utilities folder. It’s called Disk Utility, and you can use it as the first line of defense when ...

Mac OS X Lion recovery partition. Apple’s new Mac OS X Lion adds support for a recovery partition as part of the OS installation and while this may not seem important to most users — it is. Apple is ...

Mac OS X Mountain Lion gives users several ways to access the Terminal and three common options for formatting a hard drive. You can launch Terminal within Mac OS X to format hard drives currently not ...