Downloading a "patched" macOS Sequoia ISO usually refers to preparing an installer for or virtual machines . While pre-patched ISOs are sometimes shared on third-party sites, the safest and most reliable method is to create your own using the OpenCore Legacy Patcher (OCLP) . This tool manages the downloading, patching, and installation process to ensure the OS works with your specific hardware. How to Prepare a Patched Installer