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If the installation freezes, restart the Mac and try installing again, or use a different USB drive.
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Use code with caution. Copied to clipboard
You can download the macOS High Sierra 10.13.6 .dmg file from the following link:
While macOS High Sierra is an older operating system, it is still possible to download and install version 10.13.6 for recovery or legacy support purposes. For the most secure and reliable experience, it is recommended to download the installer directly through official channels. Official Download Method
Depending on your current OS version, Apple may download a .dmg or .pkg file. If it downloads as a .dmg , double-click it to find the installer package within. 2. Prepare for Installation download+macos+high+sierra+10136+dmg+mac+install
If you get an error message about the installer being killed immediately, Apple has likely expired the "code signature" of the tool. You can fix this by removing the digital signature in Terminal:
, which remains a vital operating system for users of older hardware or those needing compatibility with specific legacy software. The Significance of macOS 10.13.6
Once you've downloaded the .dmg file, you'll need to create a bootable installer. You can do this using the following steps:
Apple provides official links for older macOS versions. While third-party sites often host "direct download" DMGs, it is safest to download the installer via the Mac App Store If the installation freezes, restart the Mac and
While the official methods described above are the safest and most straightforward, there are other options available for specific situations. These approaches are generally recommended for advanced users and developers.
bypass "This copy of the install macOS application is damaged" errors that sometimes occur with older installers?
For a simpler, guided experience, you can use a free third-party tool like UUBytes. This software automates the process and is especially helpful if you have a Windows PC or prefer a graphical interface.
Shut down your Mac. Plug in the USB drive. Press the power button, then immediately hold down the Option (Alt) key. For the most secure and reliable experience, it
A bootable USB is the most reliable way to perform a clean install. You will need a USB drive with at least of space.
While Apple has progressed far beyond High Sierra, version 10.13.6 remains critically important for several reasons:
While Apple has moved on to much newer versions of macOS, remains a vital "bridge" OS for older hardware and users who need support for 32-bit apps. Because it is an older version, finding a legitimate DMG can be tricky if you don't know where to look.