Whenever possible, download the installer directly from Apple to ensure the code hasn't been tampered with.
While I wouldn't recommend downloading the ISO file from third-party sources, I understand that some users may still want to explore this option. , as they may bundle malware or other unwanted software.
Are you planning to use this ISO on a , a Windows PC (Hackintosh) , or a real Mac ? macos high sierra 10.13 6 iso download
Downloading macOS from unofficial websites like random blog posts or direct ISO download centers is fraught with danger . Many third-party ISO files have not been verified and might be outdated or contain malware, as noted by one site, stating such downloads may be "unsafe and not the latest 10.13.6 ISO file". Always prefer the official Apple routes, and if you must use a third-party source, verify the file‘s integrity using its checksum.
Testing software on an older OS environment. macOS High Sierra 10.13.6 ISO Download Options Are you planning to use this ISO on
Open (Applications > Utilities > Terminal) and execute the following commands line by line: Create a blank disk image (.dmg):
Running macOS High Sierra inside an emulator or hypervisor on Windows, Linux, or a newer Mac. Always prefer the official Apple routes, and if
| Step | Command (run in Terminal) | What it does | |------|---------------------------|--------------| | a | sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --nointeraction | Writes the installer to a USB stick (optional, but ensures the installer is complete). | | b | hdiutil create -o ~/Desktop/HighSierra.cdr -size 8g -layout SPUD -fs HFS+J | Creates an empty disk image. | | c | hdiutil attach ~/Desktop/HighSierra.cdr.dmg -noverify -mountpoint /Volumes/HighSierra | Mounts the empty image. | | d | sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/HighSierra --nointeraction | Copies the installer files into the mounted image. | | e | hdiutil detach /Volumes/HighSierra | Unmounts the image. | | f | hdiutil convert ~/Desktop/HighSierra.cdr.dmg -format UDTO -o ~/Desktop/HighSierra.iso | Converts the image to ISO‑compatible format. | | g | mv ~/Desktop/HighSierra.iso.cdr ~/Desktop/HighSierra.iso | Renames the final ISO file. |
If you are looking for a quick and ready-to-use solution, you can download pre-built ISO files created by the community.
I can provide the exact configuration settings or terminal commands for your specific setup. Share public link
Installing macOS on multiple machines without downloading the installer each time.