Perform a clean install of macOS on your device

There are several good reasons to perform a fresh install. For example if you want to replace your working or broken disk with a bigger or faster model, you bought a second hand device and want to be sure no traces of the previous owner remain, you are selling it yourself or maybe you have some issues with your current install, etc. This post will explain how to perform a fresh installation of the current or an older version of macOS, using a USB drive, on your Mac.

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