This is the core of the “macOS High Sierra download DMG install” process. Follow these steps meticulously.
Always verify the integrity of any DMG you download from third-party sites. Apple’s official High Sierra installer is ~5.2 GB. Compare SHA-256 checksums when possible.
Success? Let me know below if you need the checksum values or help creating the DMG yourself from a working Mac.
macOS High Sierra (10.13), released in 2017, was a transformative "under-the-hood" update that focused on performance and reliability rather than visual flair. While Apple no longer officially supports it with security updates, it remains a vital OS for older Mac hardware. Deep Review: The Core Innovations
Apple File System (APFS): Replaced the decades-old HFS+. It made common tasks like duplicating files and calculating folder sizes near-instant while improving crash protection and encryption.
HEVC (H.265): Introduced a new video standard that offers up to 40% better compression than H.264, allowing for high-quality 4K video without ballooning file sizes.
Metal 2: Refined Apple's graphics API, introducing support for External GPUs (eGPU) and VR content creation.
Safari Enhancements: Added "Intelligent Tracking Prevention" to block cross-site tracking and an option to disable autoplay videos. Download and Installation Guide
Getting the installer today requires specific methods as it is often hidden or restricted on newer Macs. 1. Official Download Methods Using macOS High Sierra in 2025
To download and install macOS High Sierra (10.13), you can obtain the official installer directly from Apple. Note that while Apple provides a DMG for older versions like Yosemite or El Capitan, High Sierra is primarily distributed through the Mac App Store file, which you then use to create bootable media. Apple Support 📥 Step 1: Download the Installer
You should only download macOS from official sources to avoid security risks.
How to create a bootable macOS High Sierra USB Install drive
How to Download and Install macOS High Sierra (10.13) via DMG
Installing macOS High Sierra (10.13) remains a common necessity for users maintaining older Mac hardware or setting up virtual machines. While Apple has moved toward newer releases, you can still obtain the official installer to create a bootable drive or perform a clean install. 1. Where to Download the macOS High Sierra Installer
There are several official and reliable third-party ways to get the "Install macOS High Sierra.app" or a DMG file:
Official App Store Link: You can often find a direct link on the Apple Support page that opens the App Store directly to the High Sierra download page.
Terminal Command: If you are on a Mac running macOS Catalina (10.15) or later, you can use the following command to download the full installer directly from Apple's servers:softwareupdate --fetch-full-installer --full-installer-version 10.13.6
Mist Utility: A popular open-source tool called Mist (macOS Installer Super Tool) allows you to download specific macOS firmwares and installers directly from Apple without compatibility restrictions.
Legacy DMG Links: For some older versions, Apple provides a direct disk image (.dmg) file. Once downloaded, you must double-click the DMG and then run the .pkg file inside to extract the actual "Install macOS High Sierra" app into your Applications folder. 2. Preparing Your Installation Media
To perform a clean installation, you need a USB flash drive with at least 16 GB of space. Format the USB Drive Plug in your USB drive and open Disk Utility. Select "View" > "Show All Devices". Select the top-level USB drive and click Erase.
Set the name to MyVolume, format to Mac OS Extended (Journaled), and scheme to GUID Partition Map. Create the Bootable Installer (Terminal)
Ensure the High Sierra installer is in your Applications folder, then run this command:sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolumeEnter your admin password and type Y to confirm when prompted. 3. How to Install macOS High Sierra Once your USB is ready, follow these steps to install: Shut down the target Mac. Plug in the bootable USB drive.
Intel Macs: Hold the Option (Alt) key and press the Power button. Release the key when you see boot options.
Apple Silicon Macs: Hold the Power button until "Loading startup options" appears. Select Install macOS High Sierra and press Enter.
(Optional) Use Disk Utility from the recovery menu to erase your internal drive if you want a "clean" install. macos high sierra download dmg install
Select Install macOS and follow the on-screen prompts to complete the process. 4. Troubleshooting Common Issues
"Installer is damaged" error: This is often due to an expired certificate. To fix it, disconnect from Wi-Fi, open Terminal in the recovery environment, and set your system date to a time closer to 2017 (e.g., date 0101010117).
Small (20MB) Installer: Sometimes the App Store downloads a "stub" instead of the full 5GB file. Using the Mist utility or the softwareupdate Terminal command is the most reliable way to ensure you get the full installer.
Unsupported Macs: 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.
The defining "feature" introduced during the macOS High Sierra installation process is the automatic migration to the Apple File System (APFS). Unlike previous versions, the High Sierra installer specifically offers to upgrade your internal disk to this new architecture during the install process. Key Features of macOS High Sierra
High Sierra (version 10.13) was primarily a refinement of macOS Sierra, focusing on core technologies rather than visual changes.
Apple File System (APFS): Replaced the aging HFS+ as the default file system. It is optimized for flash/SSD storage, providing nearly instantaneous file duplication, built-in encryption, and improved crash protection.
High-Efficiency Video Coding (HEVC/H.265): A new video standard that offers up to 40% better compression than H.264, allowing for high-quality 4K video at much smaller file sizes.
Metal 2: Apple's updated graphics API that supports Virtual Reality (VR) content creation, external GPUs (eGPUs) via Thunderbolt 3, and enhanced machine learning capabilities.
Safari Enhancements: Introduced Intelligent Tracking Prevention to block advertisers from tracking you across sites and Autoplay Blocking to stop videos with audio from playing automatically.
Photos App Overhaul: Added a persistent sidebar for better organization and professional editing tools like Curves and Selective Color. Download and Installation Details
If you need to install High Sierra today, follow these official and community-tested steps:
Direct Download: While searching the App Store directly may yield no results, you can use a Direct App Store Link via Safari to find the installer.
Disk Image (.dmg) Method: For older versions like Sierra or El Capitan, Apple provides Direct DMG Downloads. For High Sierra, third-party tools like Mist or the High Sierra Patcher can help download the installer directly from Apple's servers if the App Store is unavailable.
Creating a Bootable USB: Use a flash drive (at least 8GB-16GB) formatted as Mac OS Extended (Journaled). You can create the installer using the Terminal command:sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume.
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. 1. Download the macOS High Sierra Installer
Apple provides several ways to get the installer depending on your current system:
App Store: Use the macOS High Sierra App Store link to download it directly. If your Mac is too new, the "Get" button may be dimmed.
Web Browser (DMG): For older Macs, Apple offers disk image (.dmg) files. Double-click the .dmg, then the .pkg inside to place the "Install macOS High Sierra" app in your Applications folder.
Terminal: On macOS Catalina or later, you can use the command:softwareupdate --fetch-full-installer --full-installer-version 10.13.6.
Third-Party Utilities: Tools like Mist can download official installers directly from Apple's servers, bypassing App Store restrictions on newer hardware. 2. Create a Bootable USB Installer
You will need a USB flash drive with at least 16GB of space.
Format the Drive: Open Disk Utility, select your USB drive, and erase it using the Mac OS Extended (Journaled) format and GUID Partition Map. Name the drive "MyVolume".
Terminal Command: Open Terminal and paste the following command to create the bootable drive: This is the core of the “macOS High
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Use code with caution. Copied to clipboard Follow prompts and enter your admin password when asked. 3. Clean Install macOS High Sierra MacBook Pro clean install from USB (macOS High Sierra APFS)
Here’s a concise guide covering macOS High Sierra DMG download and installation.
What it is
Before you begin
Obtaining the installer (DMG vs. App Store)
Creating a bootable USB installer from the App Store app
Installing High Sierra
Verifying and troubleshooting
Security and integrity
If you want, I can:
Before we dive into the download, let’s establish why you’d want High Sierra instead of Mojave, Catalina, or Monterey.
If you’ve decided High Sierra is right for you, do not simply look for a random torrent. You need the official Apple-signed installer.
Once you have Install macOS High Sierra.app in your Applications folder:
Apple still hosts the installer package on its servers, but it’s hidden.
If the link fails, use Method B.
High Sierra is the version where Apple introduced the APFS (Apple File System).
Disclaimer: macOS High Sierra is no longer receiving security updates from Apple. It is recommended only for legacy software compatibility or offline machines.
Downloading and installing macOS High Sierra (10.13) can be tricky because Apple no longer lists it directly in the App Store search. You can get the official full installer through the Apple Support page Microsoft Community Hub 1. Download the Full Installer Via Web Browser: this official link to open the hidden App Store page. Click to download the Install macOS High Sierra.app (approx. 5.2–7.7 GB) to your /Applications Via Terminal: If you are on macOS Catalina or later, run this command:
softwareupdate --fetch-full-installer --full-installer-version 10.13.6 Legacy DMG Files:
For older versions (Sierra 10.12 or earlier), Apple provides direct
downloads, but for High Sierra, they typically direct you to the App Store. Microsoft Community Hub 2. Create a Bootable USB (Recommended)
Installing from a bootable drive is more reliable than running the app directly. Format your USB: Connect a drive (16GB+), open Disk Utility , and format it as Mac OS Extended (Journaled) GUID Partition Map Run Terminal Command: with your USB drive's name:
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Authentication:
Enter your admin password (it won't appear as you type) and wait for the "Done" message. 3. Install macOS High Sierra Before you begin
This guide provides a comprehensive walkthrough for downloading the macOS High Sierra (10.13) DMG file and performing a clean installation. Whether you are reviving an older Mac or need a reliable environment for specific legacy software, High Sierra remains a stable and popular choice. Step 1: Verify Hardware Compatibility
Before downloading, ensure your Mac supports macOS High Sierra. Generally, the following models are compatible: MacBook: Late 2009 or newer MacBook Air/Pro: Late 2010 or newer iMac: Late 2009 or newer Mac Mini/Pro: Mid 2010 or newer
You also need at least 2GB of RAM and 15GB of available storage space. Step 2: Download the macOS High Sierra DMG
Apple officially provides legacy versions of macOS through the Mac App Store and their support website.
Official Mac App Store Link: Open the macOS High Sierra download page in your browser. This will prompt the Mac App Store to open.
Download the Installer: Click "Get." This will download a file named Install macOS High Sierra.app into your Applications folder.
Converting to DMG (Optional): If you specifically need a .dmg file for virtualization (like VirtualBox) or deployment, you can use the hdiutil command in the Terminal to convert the .app installer into a disk image. Step 3: Create a Bootable USB Drive
To perform a clean install, you must create a bootable USB installer. You will need a USB flash drive with at least 16GB of capacity. Format the Drive: Open Disk Utility. Select your USB drive and click Erase. Format: Mac OS Extended (Journaled). Scheme: GUID Partition Map. Name the drive: MyVolume. Use the Terminal:
Open Terminal and paste the following command:sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
Press Enter, type your admin password, and wait for the process to finish. Step 4: Installing macOS High Sierra
Once your bootable drive is ready, follow these steps to install the OS:
Backup Your Data: Use Time Machine or an external drive. A clean install will wipe your current data. Boot from USB: Plug the USB into the Mac. Restart the Mac while holding the Option (Alt) ⌥ key.
Release the key when you see the bootable volumes; select the "Install macOS High Sierra" drive. Wipe the Drive: From the macOS Utilities window, select Disk Utility.
Select your internal startup disk (usually labeled "Macintosh HD") and click Erase.
Format it as APFS (or Mac OS Extended if you are using an older HDD). Start Installation: Close Disk Utility and select Install macOS.
Follow the on-screen prompts to select your internal drive and begin the installation. Why macOS High Sierra?
High Sierra introduced the Apple File System (APFS), which significantly improved file speed and security for SSD users. It is also the last version of macOS to support many 32-bit applications reliably, making it an essential OS for users running older professional software suites.
Are you looking to install High Sierra on a PC (Hackintosh) or a specific Mac model?
For users looking to download macOS High Sierra in DMG format for installation purposes, understanding the context, sources, and the correct procedure is vital. Unlike newer macOS versions, High Sierra (10.13) sits in a transitional era where Apple changed its file system (to APFS) and distribution methods.
Here is an informative feature guide on acquiring and using the macOS High Sierra DMG installer.
If you want to wipe your drive and start fresh (highly recommended for older machines), don't run the installer from your current desktop. Create a bootable USB drive.
What you need:
The Terminal Command: Connect your USB drive (named "MyVolume" for this example) and open Terminal. Paste this command:
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
Note: You will need to enter your admin password. The terminal will erase the USB drive and make it bootable.