How to unsync apple ID of previous owner to my own apple ID in iTunes?

How to unsync apple ID of previous owner to my own apple ID in iTunes? - 1

Added (1). Although the account has been signed out of already of the previous user, the computer still recognises it to the previous user because when i was trying to sync my new iphone with the computer, the notification to enter password for the apple ID kept popping up and this apple ID was that of the previous owner. Hence is there anyway to get rid of the previous owners apple ID?

Contact Apple support.

Which computer/operating system? On a Mac it may be signed in in…

System Preferences > iCloud

and elsewhere.

The best way would be to factory restore the computer to get rid of all traces of the previous owner
If you have a restore disk or USB use that or update your post with more specifics of the computer and we can advise

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