If you need to perform tasks previously handled by iTunes, use these pre-installed apps found in your folder: Can't install iTunes - Apple Support Community
SSL certificates on older OS versions can expire. macOS 10.13.6 received its last certificate update in late 2021. itunes macos 10.13.99 download
That means you downloaded the wrong installer. Delete it and download the one specifically labeled for 10.13.x. If you need to perform tasks previously handled
Are you a Mac user running on macOS 10.13.99 and looking to download iTunes? Look no further! This article will walk you through the process of downloading and installing iTunes on your Mac, as well as provide some troubleshooting tips and alternative solutions. itunes macos 10.13.99 download