
I tried to download an interim software between Mountain Lion and Big Sur through the app store (again, can't remember which one, sorry!) but the download failed.

I would like to update to Big Sur, which should still be compatible with my hardware (according to this page) but, though Safari loads Google searches, when I try to access any Apple pages to download more recent software, Safari can't connect to the web page. I then did a factory reset I erased all the data, did 'first aid' in the utilities on all the disk/drive thingies, and then reinstalled the operating system.įor some reason it has installed Mountain Lion.


Can't install up-to-date OS X after factory reset? I have a MacBook Air (2013) that was previously running a fairly recent version of OS X (can't remember which one, sorry).
