“This article guides you through the process of performing a clean installation of macOS 10.14 Mojave using the bootable USB drive method, rather than upgrading your Mac using Apple’s standard installation package, which retains existing user data and any user-installed apps,” Tim Hardwick writes for MacRumors.
“Creating a bootable USB drive provides you with a convenient way to install a fresh copy of macOS Mojave on multiple Macs,” Hardwick writes. “Performing a clean install can also remove annoying quirks and strange behaviors that your Mac may have inherited over time, and often helps to reclaim disk space caused by junk files left by third-party apps.”
“To follow the steps, you’ll need an empty 8GB or larger USB thumb drive (USB-C or USB-A, depending on your Mac) and an hour or two of downtime while the installation procedure completes,” Hardwick writes. “Also, be sure to perform a full backup of your Mac beforehand using Time Machine, so that you can restore your original system from the Recovery partition if something goes wrong.”
Read more in the full article here.
MacDailyNews Take: We usually perform a clean install after an upgrade, which we did across the board with the move from Sierra to High Sierra, so it’ll soon be clan install time. Oh, joy.
It sounds like a great idea, but I’m keeping my older Macs on 10.12 Sierra. Since the High Sierra experiment was slow, Mojave will likely be even slower. For those who want to install Mojave, I gently recommend that you wait for 10.14.1.