I am trying to upgrade my old Mac with OS X 10.7.5 to El Capitan. I logged into the app store and clicked on the update button and the following message came up: Update Unavailable with this Apple ID - This update is not available for this Apple ID because it was either bought by a different user or the item was refunded or cancelled.
It's been awhile since I bought this Mac, but as far as I remember, the current Apple ID that I use is the only one I've ever had. How can I fix this issue so that I can proceed with the update?
It's been awhile since I bought this Mac, but as far as I remember, the current Apple ID that I use is the only one I've ever had. How can I fix this issue so that I can proceed with the update?