Updating MacBook Air from Monterey 12.0.1

What exactly is the message you get when you try to upgrade?

And, please tell us exactly which Mac model and year you’re having trouble with. Find that info by clicking the Apple menu () at the top-left of your screen and then select About This Mac. (Note- for privacy and security reasons, please never post your serial number.)

madge_3 wrote:

Says I am not the owner, but I am. Is there a simple fix for a newbie?

Was this Computer Pre-Owned by someone else Before you took ownership of it ?