To install MacOS High Sierra 10.13.6 from the DMG file, follow these steps:
Are you looking to revitalize an older Mac, create a bootable USB drive, or need to run legacy software? Downloading the file is the essential first step. Despite being released years ago, High Sierra remains a stable, reliable operating system for many, particularly on machines that cannot upgrade to Mojave, Catalina, or newer.
If you specifically need a .dmg file for virtualization (like VirtualBox or VMware), you can use the tool: Open Disk Utility . Go to File > New Image > Image from Folder . download macos high sierra 10.13.6 dmg mac
: This review is for informational purposes only. Before downloading and installing any operating system, ensure you have a backup of your important data and verify the integrity of the installation files.
Note: If the official Apple link is dead (Apple occasionally retires them), proceed to Method 2 or 3. To install MacOS High Sierra 10
If you prefer using Terminal, Apple’s software update catalog still holds the High Sierra installer. This method downloads a .dmg directly.
Always download macOS installers directly from Apple's official servers or the Mac App Store. Third-party websites hosting "Direct DMG" files may modify the system files, potentially introducing malware or instability to your Mac. If you specifically need a
Apple’s ecosystem is cyclical. As of 2025, the Intel-to-Apple Silicon transition is nearly complete, leaving millions of perfectly functional Intel Macs in the dust. For those machines, High Sierra 10.13.6 is the final resting place—a stable, secure, and fast OS that still runs modern browsers like Firefox ESR and Chromium Legacy.
Type date 0101100018 (this resets your system clock to January 1, 2018) and press Enter. Close Terminal and restart the installation process.
If the App Store blocks your download because your Mac is "too new," the community-favorite tool can bypass these restrictions. Download it from the Mist GitHub page Select OS: Open Mist, go to the Installers High Sierra 10.13.6 , and click the download icon. You can choose to download it as a , or a standard Important Notes
Backup any data on the USB drive, as this process erases it completely. Step 1: Format the USB Drive Plug your USB drive into your Mac.