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Apple ended official security updates for macOS High Sierra in November 2020. While it can still be used for specific tasks or on older hardware, it is not secure for regular, daily use on an internet-connected machine, as any newly discovered vulnerabilities will not be patched. download macos high sierra 1013 iso and dmg upd
macOS High Sierra dmg download for making bootable usb insttaller Before starting the installation process, ensure your Mac
hdiutil convert ~/Desktop/HighSierra.dmg -format UDTO -o ~/Desktop/HighSierra.cdr Use code with caution. While it can still be used for specific
Suggest if you're getting a "damaged installer" error.