There's a full support article on how to use the Startup Security Utility. Also see Apple's Set a firmware password on your Mac. The list of bootable Startup Disks in the Startup Disk selection ...

the latest version of the utility designed to make your Mac start up quicker, is now available for downloading from Marc Moini Software. It’s a maintenance release that adds support for Mac OS 9 ...

Apple designed Macs with Apple silicon chips to automatically turn on and start up ... a new support document, Apple provided separate instructions on how to prevent an Apple silicon Mac from ...

Apple support and Disk Utility. Verbose Mode will show you what’s happening during startup and may help identify a Mac problem. Command-S launches Single User Mode, a text-based UI for advanced ...

An Apple Support page also lists what different startup sounds Mac computers make, and what it might mean about something being wrong. Big Sur, which continues Apple’s recent custom of naming ...

Apple did away with plenty of popular features in its new MacBook Pro lineup, including SD card support and MagSafe adapters. But a classic, underappreciated attribute, the famous Mac startup ...

The Apple Support website is the exact same as the Apple Support app. You can access it from a Mac or PC. Step 4: Next, you can choose to send in your device or schedule an appointment at a Genius ...