iMac password not accepted, cannot change Apple ID
My iMac will not accept my password, so I need to sign in with my Apple ID. I can't log in to change my id. Please help! Many thanks!
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This is Apple’s guidance for resetting your Mac’s login password:
If you forgot your Mac login password - Apple Support
This is for changing the login password for your Mac. It is not for changing the password for your Apple ID/Account.