When you associate a device with your Apple ID, you authorize it to download your purchased apps, music and other content. Your account can have up to 10 different devices associated with it, including computers as well as mobile devices. These associations are usually done automatically when you first set up your hardware or install iTunes. ITunes has controls for managing your registered devices, if you need to replace one that you're no longer using. Before proceeding, make sure you are running the latest version of iTunes.

Step 1

Launch iTunes, click "iTunes Store," and then select "Account" from the Store's front page. If the menu bar is visible, you can choose "Store," and then click "View Account" instead.

Step 2

Log in with your Apple ID, and then click "View Account."

Step 3

Click "Manage Devices" under the "iTunes in the Cloud" heading.

Step 4

Select "Remove" next to the device you want to erase. After the device disappears, click "Done" to return to the previous screen.