Open the application (found in Applications > Utilities).
Here is a detailed breakdown of the operating system. download macos 1012 sierra full
macOS 10.12 Sierra (released in 2016) was a significant milestone, introducing Siri to the Mac, universal clipboard, and Apple Pay on the web. Here is why you might need it: Open the application (found in Applications > Utilities)
Apple still hosts the full macOS Sierra installer on its servers, but the link is hidden. Here is the direct, official link: introducing Siri to the Mac
sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app --nointeraction
What or behavior are you experiencing?
If you ever “purchased” (i.e., claimed for free) macOS Sierra when it was current, it is permanently tied to your Apple ID.