What authorizing a computer for iTunes means

Authorizing a computer for iTunes means linking your Apple ID to that specific machine so you can play music, movies, TV shows, and audiobooks you've bought from the iTunes Store. Without authorization, you can read purchases to the computer, but you won't be able to play them. Apple limits you to authorize up to five computers at once under a single Apple ID — this is their way of preventing one purchase from being shared across dozens of machines.

The authorization process is straightforward and takes less than a minute. You'll need your Apple ID and password, and you'll do it directly in the iTunes app (on Windows or older Macs) or in the Music app (on newer Macs). Once authorized, you can play your purchased content on that computer without entering your password again.

Key Takeaways

  • Authorization links your Apple ID to a specific computer so you can play iTunes purchases on that machine.
  • You can authorize up to five computers under one Apple ID; once you hit the limit, you must deauthorize an old computer before authorizing a new one.
  • On Windows and older Macs, you authorize through the iTunes app; on newer Macs (Big Sur and later), you use the Music app instead.
  • If you forget which computers are authorized, you can view and manage your list from your Apple ID account settings online.

How to authorize on Windows or older Mac computers

Open iTunes and go to the Account menu at the top of the screen. Click Sign In and enter your Apple ID and password. Once you're signed in, return to the Account menu and select Authorize This Computer. A dialog box will appear asking you to confirm your Apple ID and password again. Click Authorize, and you're done — the computer is now linked to your account.

If you don't see an "Authorize This Computer" option, it means the computer is already authorized under your Apple ID. You can verify this by going to Account and looking for a "Deauthorize This Computer" option instead.

How to authorize on newer Mac computers (Big Sur and later)

On newer Macs, iTunes has been replaced by separate apps for Music, Podcasts, and TV. To authorize for music and other iTunes purchases, open the Music app. Click Music in the menu bar at the top, then select Account and Sign In. Enter your Apple ID and password.

After signing in, go back to the Music menu and choose Authorize This Computer. Confirm your Apple ID and password in the dialog that appears, then click Authorize. Your Mac is now authorized to play your iTunes purchases.

What to do if you've hit your five-computer limit

If you try to authorize a sixth computer and get a message saying you've reached your limit, you'll need to deauthorize one of your old machines first. You have two options: deauthorize the computer in person, or deauthorize it remotely through your Apple ID account online.

To deauthorize in person, open iTunes (or Music on newer Macs), sign in with your Apple ID, go to the Account menu, and select Deauthorize This Computer. Confirm your choice. To deauthorize remotely, visit appleid.apple.com, sign in, scroll to the Devices section, find the computer you want to remove, and click Remove. You can then authorize your new computer.

Viewing and managing your authorized computers online

You can see which computers are currently authorized under your Apple ID without opening iTunes or Music. Go to appleid.apple.com and sign in with your Apple ID. Scroll down to the Devices section, and you'll see a list of all computers and devices linked to your account, along with their authorization status.

From this page, you can remove (deauthorize) any computer you no longer use or no longer recognize. This is useful if you've sold a computer, given one away, or straightforward want to free up one of your five authorization slots for a new machine. Click the device name and then select Remove from Account.

Troubleshooting authorization problems

If you see an error message when trying to authorize, the most common cause is an incorrect Apple ID or password. Double-check that you're using the correct credentials — Apple IDs are often email addresses, and passwords are case-sensitive. If you've forgotten your password, visit iforgot.apple.com to reset it before trying again.

If you're still having trouble, make sure your internet connection is stable and that your computer's date and time are set correctly. iTunes and Music need accurate time information to communicate with Apple's servers. On Windows, check your system clock in the taskbar; on Mac, go to System Preferences (or System Settings on newer versions) and verify the date and time are correct.

What happens after you authorize

Once a computer is authorized, you won't need to enter your Apple ID password every time you want to play a purchased song, movie, or show. The authorization stays active until you deauthorize the computer or change your Apple ID password. If you change your password for security reasons, you'll need to sign in again and re-authorize the computer.

Keep in mind that authorization is tied to your Apple ID, not to a specific user account on the computer. If multiple people use the same computer, they can all play your iTunes purchases as long as the computer is authorized under your Apple ID — though they won't be able to read new purchases without your password.

Frequently Asked Questions

Can I authorize the same computer twice under different Apple IDs?

No. A single computer can be authorized under only one Apple ID at a time. If you want to switch to a different Apple ID, you'll need to deauthorize the computer first, then authorize it again with the new ID. This counts as using one of your five authorization slots for each ID.

What happens if I deauthorize all my computers?

You can deauthorize all five of your computers at once through your Apple ID account online. Once you do, you'll have all five slots available again. However, you won't be able to play any iTunes purchases on those computers until you re-authorize them.

Do I need to authorize my iPhone or iPad for iTunes purchases?

No. iPhones and iPads don't require authorization in the same way computers do. They use your Apple ID to read and play purchases directly. Authorization is only needed for Mac and Windows computers.

Can I authorize a work computer or shared computer?

Yes, but be aware that anyone using that computer will be able to play your iTunes purchases without entering your password. If you're concerned about privacy, consider using a separate Apple ID for shared machines, or deauthorize the computer when you're done using it.

What if I sell my computer — do I need to deauthorize it first?

It's a good idea to deauthorize before selling or giving away a computer. You can do this in person on the machine itself, or remotely through your Apple ID account online. This prevents the new owner from playing your iTunes purchases and frees up one of your five authorization slots.