How to create a bootable, backup Mountain Lion install disk Need to install Mountain Lion on multiple Macs? Here's how to do it.

Though you can install Mountain Lion directly from your Mac's hard drive, a bootable installer drive can be more convenient for installing the OS onto multiple Macs. And if your Mac is ...

Having a secondary boot volume is almost a necessity for troubleshooting some problems with Macs. Here are some options for creating boot disks. Topher, an avid Mac user for the past 15 years, has ...

How to create an external, bootable work disk with macOS Sequoia Not every external drive will do, but most will.

Bootable disc image files may contain all the data necessary to create a disc from which computers can boot, but if you want them to work, you can't just burn them to a disc the way you would ...

It's easy to make boot disks on old Macs for older hardware, but as the years have gone on, it's gotten a little more difficult. Here's how to make classic Mac OS 9 and early Mac OS X boot media ...

How to make your own bootable OS X 10.10 Yosemite USB install drive Setting up lots of Macs? Want an offline installer? Here's how to roll your own.