Part #1. Prepare for delete

Part #2. Deauthorizing Your Apple ID in iTunes on Windows and Mac

First, we will explain how to deauthorize your account on windows then on Mac, although the steps are similar.  Windows   Mac

Part #3. Signing out from iPhone.

Part #4. Signing out from Mac.

Part #5. Request for Account Deletion.

In order to do this right, you need to contact Apple support. The account can only be deleted by Apple’s customer service.

Part #6. Disable iMessage.

The last thing to do is to disable your iMessages.

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