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 ...

Apple Software Restore lets you clone your Mac even with a Signed System Volume. Here's how to use it to copy your Mac's storage. For a variety of reasons, you may want to make a clone of your Startup ...

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.

Last week, I posted a video on how-to create an SD card startup disk for the new MacBook Pros, the ones with the built-in SD card slot. I got several e-mail responses to that video, all of them asking ...

Change Startup Disk 1.03 is an update to this utility that allows you to bypass Startup Disk System Preferences and change the startup disk. One Button Booting from Classic to Mac OS X On a similar ...

With the release of the first Apple silicon Macs, Apple dramatically reduce troubleshooting modes and key sequences from what was previously available. Since the company no longer has to integrate ...

To improve system security your M1 Mac won't boot if the internal solid state drive (SSD) completely dies. While there's been very little information released by Apple on their SSD architecture -- I'm ...

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 ...

My HD has two user-accessible partitions, Large HD and Macintosh HD. They both had 10.6.8 installed. I could switch Startup Disks. I wanted to install Yosemite on Large HD but could only access the ...