Macos High Sierra 10136 Dmg Install [top] May 2026

macOS High Sierra 10.13.6 DMG Install: A Step-by-Step Guide

Are you looking to install macOS High Sierra 10.13.6 on your Mac? Perhaps you're upgrading from an older version of macOS or setting up a new Mac and want to start with the latest version of High Sierra. Whatever the reason, this guide will walk you through the process of installing macOS High Sierra 10.13.6 using a DMG file.

What You Need to Know

Before we begin, here are a few things to keep in mind:

  • macOS High Sierra 10.13.6 is a stable and secure version of the macOS operating system.
  • DMG file: A DMG (Disk Image) file is a type of file that contains the installation package for macOS.
  • System requirements: Make sure your Mac meets the system requirements for macOS High Sierra 10.13.6, which includes:
    • MacBook (2015 or later)
    • MacBook Air (2012 or later)
    • MacBook Pro (2012 or later)
    • Mac Mini (2012 or later)
    • iMac (2012 or later)
    • iMac Pro (2017 or later)
    • Mac Pro (2013 or later)

Downloading the macOS High Sierra 10.13.6 DMG File

To download the DMG file, you'll need to visit the Apple Support website:

  1. Go to the Apple Support website.
  2. Click on macOS in the top navigation menu.
  3. Scroll down to How to get old versions of macOS and click on macOS High Sierra.
  4. Click on Download macOS High Sierra (about 5.2 GB).
  5. Once the download completes, you'll have a macOSHighSierra.dmg file.

Creating a Bootable Installer

To create a bootable installer, you'll need a USB drive with at least 8GB of free space:

  1. Connect a USB drive to your Mac.
  2. Open Disk Utility (you can find it in Applications/Utilities).
  3. Select the USB drive from the left sidebar.
  4. Click on Erase and then Quick Erase.
  5. Open Terminal and run the following command:
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/USB\ Drive --applicationpath /Applications/Install\ macOS\ High\ Sierra.app

Replace USB Drive with the name of your USB drive.

Installing macOS High Sierra 10.13.6

Now that you have a bootable installer, you're ready to install macOS High Sierra 10.13.6:

  1. Restart your Mac and hold down the Option (⌥) key.
  2. Select the USB drive as the boot device.
  3. The macOS High Sierra installer will launch. Select your language and click Continue.
  4. Click Install and follow the on-screen instructions.

Post-Installation Steps

After installation, you'll need to:

  1. Set up your Mac by following the on-screen instructions.
  2. Configure your settings, such as setting up your Apple ID, configuring security settings, and more.
  3. Update your Mac: Go to System Preferences > Software Update to ensure you're running the latest version of macOS.

Conclusion

That's it! You've successfully installed macOS High Sierra 10.13.6 using a DMG file. If you encounter any issues during the installation process, feel free to leave a comment below, and I'll do my best to assist you.

Additional Resources

Frequently Asked Questions

  • Q: Can I upgrade to macOS Mojave from High Sierra? A: Yes, you can upgrade to macOS Mojave from High Sierra. Simply go to System Preferences > Software Update to check for available updates.
  • Q: Is macOS High Sierra still secure? A: While macOS High Sierra is still a secure version of the operating system, Apple no longer provides security updates or support for this version. We recommend upgrading to a newer version of macOS for the latest security patches and features.

To install macOS High Sierra 10.13.6 using a DMG file, you typically follow a two-step process: first, extract the installer package from the DMG to your Applications folder, and then run the actual installation app. Apple Support Step 1: Extract the Installer from the DMG Mount the DMG : Double-click your downloaded macOS High Sierra 10.13.6 DMG file to open it. Open the Package : Inside the mounted image, locate the file ending in (often named macOSHighSierra.pkg ) and double-click it. Install to Applications : Follow the on-screen prompts. This will install the OS yet; it simply places the "Install macOS High Sierra" app into your Applications Apple Support Step 2: Run the Installation Launch the App : Go to your Applications folder and double-click the Install macOS High Sierra Follow Setup and agree to the license terms. Select Disk

: Choose the hard drive where you want to install the OS and click Wait for Completion : Your Mac may restart several times during this process. Microsoft Community Hub Alternative: Creating a Bootable USB

If you need to perform a clean install on a blank drive, you can use the extracted installer app to create a bootable USB drive: Apple Support Guide for Bootable Installers to find the terminal command for High Sierra. Alternatively, use third-party tools found on Microsoft Tech Community Critical Pre-Installation Tips Backup Data : Always back up your files using Time Machine before proceeding. Check Requirements : High Sierra 10.13.6 requires at least 2GB of RAM 14.3GB of available storage Official Downloads

: It is safest to download macOS installers through the official Apple Support Page rather than third-party sites. Microsoft Community Hub Are you trying to an existing system or perform a clean install on a formatted drive?

The legacy of macOS High Sierra (version 10.13.6) is often defined by its role as a "refinement" update, prioritizing under-the-hood stability and foundational technology over flashy user-interface changes. While it is technically obsolete and unsupported by Apple as of November 2020, it remains a critical bridge for vintage hardware and specialized software workflows. The Foundational Shift: APFS and Metal 2

The true significance of High Sierra lies in its introduction of the Apple File System (APFS). This replaced the decades-old HFS+ format, offering modern features like:

Instant Cloning: Duplicating large folders became nearly instantaneous, as the system saved only the changes ("deltas") rather than full copies of the data.

Native Encryption: Built-in volume encryption improved security for internal SSDs.

Performance on SSDs: The system was specifically optimized for flash storage, significantly boosting responsiveness on older Macs upgraded with SSDs.

Additionally, the update introduced Metal 2, providing better GPU utilization and laying the groundwork for VR support and external GPU (eGPU) compatibility on newer models. Why High Sierra Persists in 2026

Despite the lack of official security patches, many users still rely on version 10.13.6 for specific reasons: Using macOS High Sierra in 2025

What is a DMG Install? (And Why Use It?)

A DMG (Disk Image) file is a container format used by macOS to distribute software. Unlike the standard Install macOS High Sierra.app (which is a package), a DMG often contains that application along with additional tools, scripts, or documentation.

When we talk about a "macOS High Sierra 10.13.6 DMG install," we generally mean one of two things:

  1. A DMG file that contains the Install macOS High Sierra.app bundle.
  2. A bootable DMG that can be directly restored to a USB drive.

Using a DMG file for installation gives you flexibility—you can store a single verified copy of the OS, share it across multiple Macs, or create a recovery drive without re-downloading the 5GB installer every time.

Verifying the DMG Source and Integrity

  1. Source validation
    • Prefer downloads from Apple’s support site or trusted enterprise archives.
    • If obtained from third parties, require a documented provenance chain.
  2. Integrity checks
    • Compare SHA-256 or SHA-1 checksums if provided with the image:
      • Compute locally: shasum -a 256 /path/to/installer.dmg
    • Check code signatures on the extracted Installer app:
      • codesign --verify --deep --verbose /Applications/Install\ macOS\ High\ Sierra.app
    • Validate notarization/signature where applicable.

5. Performance & Stability (The 10.13.6 Specifics)

On older hardware (2010–2015 Macs), High Sierra 10.13.6 runs faster than Mojave or Catalina. It uses less RAM and puts less strain on the GPU.

  • Verdict: If you have a Mac with 4GB or 8GB of RAM, High Sierra 10.13.6 is arguably the "sweet spot" for performance vs. security support.

Introduction

macOS High Sierra (10.13.x) introduced updates to the file system (APFS), graphics, and security. Many legacy applications and hardware environments still require High Sierra specifically. Installing from a DMG is common for offline, controlled, or forensic deployments. This paper documents steps and best practices for preparing, verifying, and executing a DMG-based installation of macOS High Sierra 10.13.6. macos high sierra 10136 dmg install

Step 1: Sourcing the File (The "Trust" Factor)

Apple does not keep a public link for High Sierra on the App Store front page. You usually have two options:

  1. The Official Link: You can try using Apple’s hidden support page link (HT201372), which will open the App Store to download the installer.
  2. The DMG Archive: If you have downloaded a Install macOS High Sierra 10.13.6.dmg from the web (e.g., from the Internet Archive or a backup repository):
    • Security Warning: Always verify the checksum (SHA-1) if possible. Modified macOS installers can contain malware. Only download from reputable archival sources.

Why Keep a 10.13.6 DMG Installer on Hand?

  • Legacy Software Testing: Developers need High Sierra to test 32-bit apps or older versions of Xcode (Xcode 10.1 runs on 10.13.6).
  • Classic Mac Pro Users: The 2010–2012 Mac Pro (5,1) runs perfectly on 10.13.6, supporting modern GPUs (RX 580, Vega 56) via eGPU or native.
  • No Automatic Updates to Catalina/Big Sur: Unlike later OS versions, High Sierra does not nag you to upgrade to an incompatible OS.
  • Bridging the Gap: If you need to go from an older OS (El Capitan) to a newer one (Mojave/Catalina), High Sierra is required to update the Boot ROM/firmware first.

Final Verdict

macOS High Sierra 10.13.6 is a workhorse.

If you are installing this via DMG today, you are likely doing so for one of two reasons: Legacy Hardware or Legacy Software.

  • For Gamers: It supports the last versions of many 32-bit games before Apple killed 32-bit support in Catalina.
  • For Older Macs: It runs incredibly well on 2012–2015 MacBook Pros and iMacs, often faster than their newer OS counterparts.

The DMG installation process requires a few Terminal commands and a bit of patience, but the result is a clean, stable operating system that respects the hardware limitations of older machines.

Score: 8/10 (Deducting points only for the lack of modern security patches and the difficulty of obtaining a valid DMG installer today).

References

(References omitted per instructions to avoid external links in responses.)

If you want, I can expand this into a formal academic-style paper with citations, or produce step-by-step scripts for automating bootable USB creation and mass deployment.

Installing macOS High Sierra 10.13.6 via a DMG file is a multi-step process that involves verifying your hardware, obtaining the correct image, and creating bootable media . While Apple typically provides installers as

files, DMGs are often used for manual creation on Windows or for specific recovery purposes. Microsoft Community Hub 1. Verify System Compatibility

Before proceeding, ensure your Mac supports High Sierra (10.13). Generally, any Mac that could run macOS Sierra (10.12) is compatible. Late 2009 or newer MacBook Pro: Mid 2010 or newer MacBook Air: Late 2010 or newer Mid 2010 or newer Late 2009 or newer Mid 2010 or newer Minimum Requirements: 2GB RAM and approximately 14.3GB of available storage. Apple Support 2. Obtain the macOS High Sierra DMG

You can get the official installer through several official and reputable third-party methods:

macOS High Sierra - Technical Specifications - Apple Support

Installing macOS High Sierra (10.13.6) from a DMG file involves extracting the installer and then running the system update. High Sierra is often the final supported OS for many older Macs, such as the 2011 MacBook Pro. 1. Download the Official Installer

To ensure security, always obtain the macOS High Sierra DMG directly from Apple Support. Avoid third-party mirrors to prevent malware risks. 2. Extract the Installer Package

Unlike standard apps, a macOS DMG usually contains a .pkg installer that places the actual "Install macOS High Sierra" app into your Applications folder. Double-click the .dmg file to mount it. In the window that opens, double-click the .pkg file.

Follow the prompts to "install" the installer onto your hard drive. 3. Run the macOS Installation macOS High Sierra 10

Once the package finish running, the installer application will be available in your system. Open your Applications folder. Find and double-click Install macOS High Sierra.

Click Continue and follow the on-screen instructions to begin the upgrade. 4. Create a Bootable USB (Optional)

If you need to perform a clean install or recover a non-booting Mac, you can use the extracted installer to create a bootable drive using the createinstallmedia command in Terminal. Post-Installation Tips

Security: High Sierra received its last security update in late 2020, so use caution when browsing the modern web.

Future Upgrades: If your hardware supports it, the next logical upgrade from High Sierra 10.13.6 is macOS Mojave (10.14.6) or macOS Catalina (10.15.8).

Are you installing this on an older Mac for compatibility, or are you looking to create a bootable USB drive for a clean install? Using macOS High Sierra in 2025

Installing macOS High Sierra 10.13.6 from a DMG File: A Step-by-Step Guide

macOS High Sierra 10.13.6 is a popular operating system for Macs, offering a range of features and improvements. If you've downloaded the macOS High Sierra 10.13.6 DMG file and are looking to install it, this guide will walk you through the process.

Before You Begin

  • Ensure your Mac meets the system requirements for macOS High Sierra 10.13.6:
    • MacBook (2015 or later)
    • MacBook Air (2012 or later)
    • MacBook Pro (2012 or later)
    • Mac Mini (2012 or later)
    • iMac (2012 or later)
    • iMac Pro (2017 or later)
    • Mac Pro (2013 or later)
  • Make sure you have a backup of your important files and data.
  • Ensure you have a stable internet connection.

Preparing the DMG File

  1. Download the macOS High Sierra 10.13.6 DMG file: If you haven't already, download the DMG file from the official Apple website or a trusted source.
  2. Verify the DMG file: Check the integrity of the DMG file by verifying its checksum (if provided).
  3. Mount the DMG file: Double-click the DMG file to mount it. You can also use the hdiutil command in Terminal: hdiutil attach /path/to/macos_high_sierra_10.13.6.dmg

Creating a Bootable Installer

  1. Open Disk Utility: You can find Disk Utility in Applications/Utilities or use Spotlight to search for it.
  2. Select the DMG file: In Disk Utility, select the mounted DMG file (it should appear as a virtual disk).
  3. Create a bootable installer: Go to File > New Image > New Image from [DMG file name]. Choose a location to save the new image and select Mac OS Extended (Journaled) as the format. Name the image (e.g., "macOS High Sierra 10.13.6 Installer").
  4. Create the bootable installer: Disk Utility will create a new IMG file. This process may take a few minutes.

Installing macOS High Sierra 10.13.6

  1. Restart your Mac: Shut down your Mac or restart it.
  2. Hold down the Option (⌥) key: Immediately hold down the Option (⌥) key while booting up your Mac.
  3. Select the bootable installer: Release the Option key when you see the Startup Manager window. Select the bootable installer (the one you created earlier) and click the arrow or press Return.
  4. Start the installation process: The macOS High Sierra installer will launch. Follow the on-screen instructions to begin the installation process.
  5. Select the installation disk: Choose the disk where you want to install macOS High Sierra 10.13.6. You can select the startup disk or a different disk.
  6. Install macOS High Sierra: The installation process will begin. This may take some time, depending on your Mac's performance and the installation disk.

Post-Installation Steps

  1. Configure your Mac: Follow the on-screen instructions to set up your Mac, including selecting your language, country or region, and setting up your Apple ID.
  2. Update macOS High Sierra: Go to System Preferences > Software Update to ensure you're running the latest version of macOS High Sierra.
  3. Restore your data: If you backed up your files, you can now restore them to your Mac.

Conclusion

Installing macOS High Sierra 10.13.6 from a DMG file requires some technical expertise, but by following these steps, you can successfully create a bootable installer and install the operating system on your Mac. Remember to always back up your important files and data before attempting to install a new operating system.

Additional Tips and Troubleshooting

  • If you encounter issues during installation, try restarting your Mac and retrying the installation process.
  • If you're having trouble creating a bootable installer, ensure that the DMG file is not corrupted and try re-downloading it.
  • If you've installed macOS High Sierra 10.13.6 and are experiencing issues, consider seeking help from Apple Support or a professional technician.