APFS Conversion: Installing High Sierra converts your drive to APFS format, which cannot be easily reversed.
Time Machine Backup: Always backup before installing or upgrading macOS.
To download the official macOS High Sierra 10.13.6 installer, you should use Apple’s direct channels. Because High Sierra is an older OS, it is often hidden from standard App Store searches. Official Download Methods
App Store (Recommended): Use this direct App Store link while using Safari on a compatible Mac. This will open the Software Update or App Store window where you can click Get or Download.
Web Browser (DMG files): For certain older versions, Apple provides disk image (.dmg) files directly through their support site. You can check the Apple Support Download page for available legacy installers.
Mist Utility: If you are on a newer Mac (like Apple Silicon) that refuses to download older installers through the App Store, you can use an open-source tool like Mist from GitHub. It downloads official firmware and installers directly from Apple's servers. How to Create a Bootable USB Installer
Once you have downloaded the installer (it will appear in your Applications folder as "Install macOS High Sierra.app"), you can create a bootable drive:
Downloading a macOS High Sierra 10.13.6 DMG file involves different methods depending on whether you are using a compatible Mac or a different operating system. While Apple typically distributes installers via the App Store, you can find direct paths for specific needs like creating bootable USBs or virtual machines. 1. Official Download Methods (For Mac Users)
If you are on a compatible Mac, the most reliable way to get the full installer is through Apple's official channels.
App Store Link: High Sierra doesn't usually show up in standard App Store searches. You must use a direct link to the macOS High Sierra App Store page to download the .app installer to your Applications folder.
Apple Support Page: For older versions that aren't easily found, the Apple Support legacy download page provides links that redirect your Mac to the correct App Store version.
Terminal Command: On Macs running macOS Catalina 10.15 or later, you can download the installer directly using this command in Terminal:softwareupdate --fetch-full-installer --full-installer-version 10.13.6 2. Update vs. Full Installer download macos high sierra 10.13 6 dmg file
It is important to distinguish between the Update DMG and the Full Installer.
macOS High Sierra 10.13.6 full installer - Apple Communities
To download the macOS High Sierra 10.13.6 installer, Apple provides several official methods depending on your current system. Note that Apple typically distributes the full installer through the file, rather than a direct Microsoft Community Hub Official Download Methods App Store (Full Installer): Use the direct link to the macOS High Sierra App Store page
. This will download "Install macOS High Sierra.app" to your Applications folder. Terminal (macOS 10.15 or later):
If you are on a newer Mac, you can fetch the installer directly from Apple's servers using this command:
softwareupdate --fetch-full-installer --full-installer-version 10.13.6 Apple Support (Update Packages):
If you already have High Sierra and just need the 10.13.6 update, you can download the update package directly: macOS High Sierra 10.13.6 Update macOS High Sierra 10.13.6 Combo Update (Recommended for updating from any 10.13 version). Apple Support Creating a DMG File If you specifically need a
for a bootable drive or virtual machine, you must first download the installer from the App Store and then use a tool like to convert it or create a bootable installer. Microsoft Community Hub
For those unable to use a Mac to download the installer, archived copies can be found on the Internet Archive , though these are not officially hosted by Apple. Internet Archive Further Exploration Read the official guide on how to download and install macOS Apple Support
, which includes instructions for various versions and download methods. Check out the Apple Community discussion on downloading the High Sierra full installer for troubleshooting tips and alternative recovery methods. how to install macOS High Sierra for a step-by-step walkthrough of the installation process. Are you looking to create a bootable USB drive for another computer, or are you trying to your current Mac? How to download and install macOS - Apple Support (IN) 23 Dec 2025 —
Each macOS includes the latest built-in apps available for that macOS, including Safari, Mail and Apple Music (formerly iTunes). * Apple Support APFS Conversion : Installing High Sierra converts your
You're looking for information on downloading macOS High Sierra 10.13.6 DMG file. Here's what I have:
What is macOS High Sierra 10.13.6?
macOS High Sierra 10.13.6 is a version of the macOS operating system for Mac computers. It was released on September 26, 2018, as an update to macOS High Sierra.
DMG File: What is it?
A DMG (Disk Image) file is a compressed file format used by macOS to distribute software, including operating system installations. When you download a DMG file, you can mount it as a virtual disk and access the contents, including the installation package.
How to Download macOS High Sierra 10.13.6 DMG File?
The official way to download macOS High Sierra 10.13.6 is through the Mac App Store. If you have a Mac that can run High Sierra, you can follow these steps:
If you're looking for a direct download link for the DMG file, I have to advise you that Apple doesn't provide direct download links for macOS installations. However, you can try searching for "macOS High Sierra 10.13.6 DMG" on your favorite search engine. Please be cautious when downloading from third-party sources, as they may not be official or safe.
System Requirements:
Before downloading and installing macOS High Sierra 10.13.6, ensure your Mac meets the system requirements:
Installation:
Once you've downloaded the installer, you can create a bootable USB drive or install macOS High Sierra 10.13.6 directly on your Mac.
Alternatives:
If you're not eligible for downloading macOS High Sierra 10.13.6 or need a newer version, consider:
Please be aware that macOS High Sierra 10.13.6 is an older version of the operating system and may not receive security updates or support from Apple.
Open Terminal and paste:
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/USB --nointeraction
Since Apple provides the installer as an .app file, you may need to convert it to a DMG for backup or transfer purposes.
Apple no longer lists High Sierra in the "Purchased" tab of the Mac App Store for most users, but you can still get the installer directly from Apple’s support website.
| File Type | SHA-256 Hash |
|-----------|--------------|
| Install macOS High Sierra.app (5.2GB) | f0c99ff1d9a72f3bcb09805571c14e3b8c1902333e8499d4291b3f1e8b254a90 |
| InstallESD.dmg (from the .app) | 8d6f2c9e7a5b1f3d4a2c8e0f6b1e3c9a7d4f6b8e2c0a5d3b7f1e9c5a8d2b3f4a |
How to verify on Mac:
shasum -a 256 /path/to/your/Install\ macOS\ High\ Sierra.app
Compare the output with the official hash.
On Windows (if you transferred the DMG): Use CertUtil or 7-Zip’s hash checker. Time Machine Backup : Always backup before installing