HOW TO Create the macOS installer
1 Get the patcher
The first thing you need to do is download OpenCore–Patcher (GUI) from https://bit.ly/3N9AWnQ. Once it’s downloaded, run the app and you should now see a window like this one.
2 Create the installer
Click on “Create macOS Installer” and you’ll be given a choice of using an existing installer or downloading it. Go for the download option as this will ensure you get the most up–to–date version of macOS for your Mac.
3 Pick your macOS
As you can see, we have three choices here. We want the most recent one, which is the one with the highest version number; at the time of this screenshot that means the latest Ventura build, which was 13.3.1.