For example, if you want to install Mavericks on multiple Macs, using a bootable install drive can be more convenient than downloading or copying the entire installer to each computer.

The way you install a program from an ISO file varies depending on which version of Windows you use. Let’s check out your options.

Screenshot by Jason Cipriani/CNET How to flash Windows 11 to your USB drive To turn a standard USB drive into an installation drive, you'll need to use a program called Rufus.