Answer
- Open iTunes on the Mac.
- Choose Store > View Account.
- Enter your password.
- Click Manage Devices under iTunes in the Cloud.
- Click Remove next to each device associated with your account.
- Click Done.
- Choose Store > Deauthorize This Computer.
Removing an Old Apple ID From an iPhone : Tech Yeah!
How to Delete Apple ID
How do I delete an old Apple ID and create a new one?
1. Open iTunes on the Mac.
2. Choose Store > View Account.
3. Enter your password.
4. Click Manage Devices under iTunes in the Cloud.
5. Click Remove next to each device associated with your account.
6. Click Done.
7. Choose Store > Deauthorize This Computer.