While Apple has moved on to macOS Sonoma and beyond, there is still a dedicated group of users searching for . Whether you are running legacy software on an older Mac, trying to breathe new life into a 2009/2010 machine, or setting up a virtual machine (VM) for testing, the High Sierra DMG file is an essential tool.
(Replace MyUSB with your USB drive’s name.) macos high sierra dmg
Run the installer, then reboot and fix the date. While Apple has moved on to macOS Sonoma
If the installer refuses to run because of an expired certificate, set your Mac’s date back to 2019 before launching the installer: macos high sierra dmg