Many third-party repositories host pre-compiled macOS High Sierra ISO files. While convenient, downloading executable system images from unofficial platforms exposes your computer to potential malware or injected system modifications.
hdiutil create -ov -size 10240m -format UDRW -volname "macOS High Sierra" -fs "Mac OS Extended (Journaled)" -attach ~/Desktop/macOS\ High\ Sierra.dmg
Need to run macOS High Sierra 10.13 on older hardware or inside a virtual machine (VMware/VirtualBox)? Apple has removed this version from the main App Store “Purchased” tab for many accounts, but you can still obtain the official installer files directly from Apple using the command line.
: If you already have 10.13.x installed and only need the final 10.13.6 "Combo Update" to bring it to the latest version, you can download the macOS 10.13.6 Combo Update directly from Apple. Creating a macOS High Sierra ISO or USB download macos high sierra 1013 iso and dmg upd
These files represent the final, most stable release of High Sierra (version 10.13.6). They include all security patches and stability updates. macOS High Sierra DMG (Official App Store Installer)
Use Option 1 above to download Install macOS High Sierra.app .
: For users needing a DMG for bootable USB creation on non-Mac hardware, some third-party sites like provide mirror links. Microsoft Community Hub Utilities for Easy Access Apple has removed this version from the main
This file format is modified specifically for emulator and virtualization software. ISO (Standard Disc Image) File Size: ~5.5 GB
This packages the exact contents of the application into a compressed, deployable on your desktop. Creating a Bootable USB Installer
For security, always prefer . Use third-party ISOs only for virtual machines where you can isolate the environment. They include all security patches and stability updates
While Apple has transitioned its modern operating systems to newer frameworks, macOS High Sierra remains highly sought after due to its stability, compatibility with legacy 32-bit applications, and low system overhead. This comprehensive guide outlines safe methods to acquire official disk images, create custom ISOs, and deploy them on Mac or Windows environments. Understanding the Formats: DMG vs. ISO
High Sierra ISO Repository (Search for the macOS High Sierra 10.13.6_17G66 entry) 1.2.3. 3. How to Create a Bootable USB Installer (macOS & Windows) On a Mac (Using Disk Utility)
hdiutil create -o /tmp/HighSierra -size 8G -layout SPUD -fs HFS+J -type SPARSE
Once complete, do not run the installation immediately. The system file named Install macOS High Sierra.app will safely reside inside your /Applications folder. Method B: Terminal Fetch Command (macOS Catalina or Newer)