Hit the Get button, and wait for it to download.Navigate to the macOS Sonoma listing on your Mac's App Store.If you have a Mac and don't want to download the ISO file from a random source, then you can obtain it by following the steps: Search the web for macOS Sonoma ISO file, and download it from a source you trust. In this case, the ISO file can be obtained by looking it up online. We understand that not everyone has access to a Mac, though. This means that you will need a Mac to download this file from the App Store and then convert it to ISO. Starting with macOS Big Sur, Apple no longer offers the APP file on the web. This requires you to convert the APP file you download from the Mac App Store page to DMG, then from DMG to ISO. The main package includes the ~14GB of resources needed to install macOS in the sandbox. The ISO file for macOS is one of the primary requirements for running the OS in VirtualBox.
