Another dialog.
If you have access to a Mac, this is the safest and most reliable method. It involves downloading the official macOS High Sierra installer and using the createinstallmedia tool (built into the installer) along with the hdiutil command-line tool in Terminal to create an ISO.
: The most reliable way to get the full installer is via the macOS High Sierra App Store link Apple Support Downloads
: Be cautious with pre-made ISOs from unofficial sites, as they can contain malware or modified system files. Always verify the MD5 or SHA-1 hash if provided by the community. macos high sierra 10136iso
For VM users with your own ISO (created in Part 4):
Ping.
: Use a compatible Mac to grab "Install macOS High Sierra" from the or use a tool like to download it directly from Apple's servers. Convert to ISO Place the installer app in a folder. Disk Utility Another dialog
The downloaded file will be saved directly into your /Applications folder. if your goal is to build an ISO file. Method 2: Third-Party Archives (Alternative)
Once complete, the file named will sit in your /Applications folder. Do not run the installer yet. Step 2: Convert the Installer App to an ISO File
What (VirtualBox, VMware, etc.) are you planning to use? : The most reliable way to get the
for a virtual machine (like VMware or VirtualBox) or for burning to a disc, you must first download the official "Install macOS High Sierra.app" and then convert it using Terminal commands. Basic Conversion Steps: the installer from the App Store. Create a blank disk image command in Terminal. the image and use the createinstallmedia
Apple never provided an official ISO for High Sierra. Third-party websites that claim to offer “macOS High Sierra 10.13.6 ISO” have:
Replaced the decades-old HFS+ system, significantly speeding up file operations like copying and moving data on SSDs.
Are you installing this on a , a PC (Hackintosh) , or a virtual machine ?