I can provide the specific Terminal commands to build the ISO for you.
(Assuming the installer is in your Applications folder) sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia --volume /Volumes/macOS --nointeraction Mac Os Download Iso 64 Bit
(Adjust the path for your macOS version.) I can provide the specific Terminal commands to
: For older versions like Sierra or El Capitan, Apple provides direct .dmg download links on their Support Page. Mac Os Download Iso 64 Bit
If you don’t have access to a Mac, creating a clean ISO is difficult but not impossible. Tools like (by CorpNewt on GitHub) can download macOS installers directly from Apple’s servers on a Windows PC.
The most secure way to get macOS files is directly from Apple.