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.

If your Mac has multiple bootable disks—via either a partitioned internal disk or external FireWire drives—you’re probably very familiar with the Startup Disk System Preferences panel. As you’d guess ...

James Duff reports routinely inaccurate reporting of OS version numbers through Mac OS 9's Startup Disk control panel: "In a nutshell, my Startup Disk control panel reports the wrong system version in ...

Forgot your Mac password? 3 ways to unlock startup disks encrypted with Apple’s FileVault Your email has been sent If you forget your Mac's login account password ...