Starta Terminal.app och kör kommando enligt nedanstående exempel:

softwareupdate --fetch-full-installer --full-installer-version 10.15

softwareupdate --fetch-full-installer --full-installer-version 10.14.6

softwareupdate --fetch-full-installer --full-installer-version 10.15.3

softwareupdate --fetch-full-installer --full-installer-version 10.13.6

Paketet dyker upp i /Applications.

(https://osxdaily.com/2020/04/13/how-download-full-macos-installer-terminal/)