I bought on Amazon used iMac that still has remote management registered to old owner - a primary school in Adelaide Australia.
I cannot enter my credentials and move to next stage of configuration since its still registered to former user. how to I remove the old user and reboot the computed for me to use?
please help!
[Re-Titled by Moderator]
This is what the old user should have done before selling that Mac to you: What to do before you sell, give away, trade in, or recycle your Mac - Apple Support
The only entity that can remove the remote management is the entity that installed it.
Never buy a used Mac from an unknown source. This Mac is a door stop unless you can contact the previous owner and get their help.
If you must buy used, consider buying from Apple Certified Refurbished.
Certified Refurbished Products - Apple
❝Apple Certified Refurbished products include a one‑year warranty, full functional testing, and savings up to 15% — give an Apple device new life❞
I believe the school would need to remove the Mac from their system; this is not something you can do for yourself without their help.
It sounds like you might need to try to return the Mac to the seller to get the issue fixed or to get your money back.
The school did not prepare the Mac properly for resale and it you may need to contact them to get it released from their management system. You can try booting the Mac to recovery mode, erasing the drive, and reinstalling macOS:
How to reinstall macOS - Apple Support
but if it still insists on credentials from the former owner, then only they can release it. If you are unable to contact the seller, the Mac is basically a boat anchor at this point and you'll need to file a complain with Amazon and try to get your money back. This is one of the hazards of buying any device sight-unseen.
Good luck.
Report it to Amazon for a full refund. They know the device is unusable as is.
Removing Remote Management from used iMac
