Click "Erase" to format the drive. Once complete, the drive will be ready for the installer.
: ISO files are disk images formatted for optical media and virtualization. An ISO installer is primarily used when running macOS in virtualization software such as VirtualBox or VMware Workstation. This format is common when installing macOS on Windows PCs or unsupported hardware. High Sierra ISO files are larger than DMG files, typically ranging from 7 to 8 GB, because they contain a complete bootable disk image.
To download and install macOS High Sierra (10.13), you can obtain the installer directly from Apple or use third-party tools if you're on a newer Mac. Once downloaded, you can create a bootable USB drive to perform a clean installation. macos high sierra download dmg install
This is Apple's recommended, free, and most reliable method for creating a bootable installer, which works for both .app and .dmg installers.
Select using the arrow keys and press Enter . Click "Erase" to format the drive
"This copy of the Install macOS High Sierra application is damaged"
Click the link to open the Mac App Store wrapper. An ISO installer is primarily used when running
: If you are trying to install on a Mac that isn't officially supported, tools like the dosdude1 High Sierra Patcher can help modify the installer for older hardware.
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled Use code with caution.
might not be Apple’s newest operating system, but for many users with older Mac hardware, it remains the final, stable, and most performant option. If you own a Mac from 2009–2010 that has been patched, or a 2011–2017 model that cannot run macOS Catalina or newer, High Sierra is your sweet spot.
mdls /Applications/Install\ macOS\ High\ Sierra.app | grep kMDItemVersion