
This method allows you to download macOS 10.13 and newer, for 10.12 and older see Downloading macOS: Legacy OS. For everyone else, you can either download macOS from the App Store or with Munki's script. You can skip this and head to formatting the USB if you're just making a bootable OpenCore stick and not an installer. To start we'll want to grab ourselves a copy of macOS.

While you don't need a fresh install of macOS to use OpenCore, some users prefer having a fresh slate with their boot manager upgrades.


This update includes fixes which resolves an issue where icons in Launchpad can be rearranged after the reboot of the system. Gatekeeper also lets you tweak settings which will let you install the apps from different places like from Mac App Store or any 3 rd person developers with signed apps.

Mac OS X Lion 10.7.5 has got Gatekeeper which is a new security feature which will let you keep your Mac safe from many malicious software in order to give you more control over the applications that are installed on your Mac.
