Sure you can boot your system disc to run Disk Utility but I've found in many cases, I needed a lot more. You can also boot from your utility program discs, but that's time consuming and it's possible ...

Disk Utility is Apple's go-to macOS app for finding and repairing common disk errors, but if it's your Mac's internal disk that's the problem, then your Mac might not even start up into macOS.

The First Aid feature in Apple’s Disk Utility (/Applications/Utilities) represents one of the oldest and most helpful repair utilities available for your Mac. But ...

New version of Disk Utility can fix "overlapped extent allocation" errors 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 ...

In last month's column, I described the hurdles that Mac OS X puts in your way when you try to create a bootable disc, especially a custom bootable CD, DVD or flash drive. I offered various solutions ...

I have had similar symptoms in the past on more than one Mac (disk utility says it can,t repair and you should backup ASAP, failure to boot up, etc.) only to find a run of Disk Warrior and I was good ...

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...