1. "This copy of the Install macOS High Sierra application is damaged"
| Method | Key Features | Ease of Use | Best For | | :--- | :--- | :--- | :--- | | | Apple's recommended way; requires a compatible Mac | Very Easy | Anyone with a compatible Mac who wants to install macOS High Sierra directly | | Mac App Store Link | Direct access via Apple's official store; easy to find if you have the correct link | Very Easy | Those who can still find High Sierra in their "Purchased" tab or via a direct link on a compatible Mac | | Terminal Command ( softwareupdate ) | Directly from Apple's servers; downloads the full installer .app | Advanced | Users comfortable with the command line who want maximum control and a guarantee of file integrity | | Third-Party Open-Source Tools (e.g., MIST) | Downloads directly from Apple's servers; supports multiple versions | Easy | Users who want a user-friendly graphical interface to download official installer files | | Third-Party Disk Utilities (e.g., iBoysoft DiskGeeker, EaseUS) | Downloads DMG files directly to your drive; can also create bootable USB installers | Moderate | Those who need a DMG file specifically for virtualization or offline storage |
You now have a safe, locally created ISO file for your VM.
: Useful for downloading the full installer on older, unsupported Macs. Creating Your Own Bootable ISO/DMG
Apple provides the .app installer, but you may need an ISO or DMG for bootable media or virtual machines. download macos high sierra 1013 iso and dmg upd
Click the link for . This will automatically launch the Mac App Store on your device. Click Get or Download .
Before downloading, ensure your target hardware or virtual environment meets the minimum specifications for macOS High Sierra. Minimum Hardware Requirements 2 GB minimum (4 GB or more recommended).
Back up all data on the USB drive, as this process erases everything. Step-by-Step Instructions Plug your USB drive into the Mac.
The terminal will copy the files and make the drive bootable. This process usually takes 15 to 30 minutes depending on your USB drive speed. Creating Your Own Bootable ISO/DMG Apple provides the
softwareupdate --fetch-full-installer --full-installer-version 10.13.6 Use code with caution. Press .
There are a few ways to download macOS High Sierra 10.13 ISO and DMG files. Here are the most common methods:
Are you installing this on a or a virtual machine (VirtualBox/VMware) ?
Step 3: Creating a Bootable High Sierra USB Drive (For Physical Macs) Click Get or Download
Apple does not provide official ISO files. ISO files are required if you want to run High Sierra on Windows using VirtualBox or VMware. You must convert the official app installer into an ISO image using Terminal. How to Create a High Sierra ISO File
Once the download completes, the installer will launch automatically. Close the installer application. Open your Applications folder. Locate Install macOS High Sierra.app .
Type your Mac's administrator password (the letters will not show as you type) and press .
The safest and most reliable way to obtain the macOS High Sierra DMG installer file is directly from Apple. Open your web browser on a compatible Mac.