Apart from the default startup disk, Mac computers can be set to start up from a different disk like an external drive, network volume, or a USB flash drive. This article explains the process for ...

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.

When I wrote a series of How-To guides showing how easy it was to swap old Mac hard disks for new solid state drives (SSDs), I focused on raw upgrades — slow mechanical drives for fast chip-based ones ...