Deauthorize computer
How do you deauthorize a particular computer?
MacBook Air 13″, macOS 10.13
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See the instructions in Authorize or deauthorize your computer for iTunes Store purchases - Apple Support including the following:
Deauthorize a computer
- On a Mac, open the Music app, Apple TV app, or Apple Books app. On a PC, open iTunes for Windows.
- From the menu bar at the top of your computer screen, choose Account > Authorizations > Deauthorize This Computer.
- Sign in with your Apple ID.
- Choose Deauthorize.
If you run out of authorizations, deauthorize all
If one of your 5 authorizations is on a computer that you don't use anymore, deauthorize it. If you sold or gave away a computer that's used one of your 5 authorizations, you need to choose Deauthorize All on the Account Information page. Then authorize each computer that you still use.