If you are using a compatible Mac running a version of macOS prior to High Sierra, or a version up to macOS Catalina, you can pull the installer directly from Apple.
The createinstallmedia command requires administrator privileges to erase and write to the USB drive. The "sudo" prefix grants these elevated privileges for the duration of the command.
No. If your current Mac is compatible, you can simply run the Install macOS High Sierra.app from your Applications folder. A bootable USB is only required for clean installations, multiple computer installations, or troubleshooting.
For users who want to perform a clean installation of macOS High Sierra—wiping the hard drive and starting fresh—a bootable USB installer is the best tool for the job. A bootable USB allows you to install High Sierra on multiple Macs without re-downloading the installer each time, troubleshoot startup issues, recover data, and perform offline installations when internet access is limited or unreliable. macos high sierra download dmg install
If you need help identifying if your is compatible with High Sierra, or if you need the exact Terminal syntax for a different system layout , please let me know! Share public link
This action automatically redirects you to the Mac App Store. Click the button to open the Software Update panel.
macOS High Sierra remains a valuable operating system for users with older Macs that cannot run newer macOS versions, for developers testing legacy software, and for enthusiasts running vintage Mac hardware. While obtaining and installing High Sierra in 2026 presents more challenges than it did during its heyday, the process is entirely feasible with the right tools and knowledge. If you are using a compatible Mac running
Select the orange drive labeled and press Enter .
macOS High Sierra is a masterpiece of stability for legacy Macs. By following this guide, you’ll breathe new life into older hardware while keeping your data secure with an authentic Apple installer.
Complete Guide to Downloading and Installing macOS High Sierra (10.13) DMG For users who want to perform a clean
It is worth noting that while the upgrade requires 14.3 GB of free space, the actual installation process will take additional temporary space. Users with limited storage should consider freeing up at least 20 GB before beginning.
Do you plan to install this on a or inside a virtual machine ? Share public link