MacBook Pro 17-inch User’s Guide pdf
If you don’t intend to keep or use your other Mac, it’s best to deauthorize it from playing music, videos, or audiobooks that you’ve purchased from the iTunes Music Store. Deauthorizing a computer prevents any songs, videos, or audiobooks you’ve purchased from being played by someone else and frees up another authorization for use (you can use only five authorized computers at a time with an iTunes account).
For information on deauthorizing, in iTunes open Help > iTunes and Music Store Help. If you don’t use Setup Assistant to transfer information when you first start up your computer, you can do it later using Migration Assistant. Go to the Applications folder, open Utilities, and double-click Migration Assistant.
Note: If you’ve used Setup Assistant to transfer information from your other Macintosh and you want to use Migration Assistant to transfer information from it again, make sure FileVault is turned off on the other Macintosh.To turn off FileVault, open the Security pane of System Preferences and click Turn Off FileVault. Follow the onscreen instructions.
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