download mac os high sierra installer iso

Note: Here I describe how to create macOS install media, either as a bootable USB stick to do a fully clean macOS install for your Mac, or a DMG file, for example to setup a virtual machine. a DMG or ISO file) so you can install another version of macOS. This comes with challenges though, since Apple, in their infinite wisdom, does not simply provide macOS install media (eg. Some of my favorite tools simply no longer work, and as a developer this makes me nervous when considering switching to the latest and greatest.įor this purpose I always create a virtual machine in VMWare Fusion, running the macOS version that I ran before the update. For some it’s nothing, for other it’s a disaster.Ĭatalina is one of the latter, a disaster for quite few amongst us, due to changed security rules and the lack of support of 32 bit applications. In this article, I’ll show you the steps to create macOS install Media …Īs most Mac users will know each new macOS version comes with a few challenges.

Download mac os high sierra installer iso