What authorizing a computer for iTunes actually does

Authorizing a computer for iTunes means telling Apple that this specific device is allowed to play music, movies, and other content you've purchased from the iTunes Store using your Apple ID. When you buy something from iTunes, Apple attaches it to your account. Authorization is the step that lets your computer actually open and play those purchases — without it, you'll see a lock icon and won't be able to listen or watch.

You can authorize up to five computers at once under a single Apple ID. This is why the feature exists: so you can buy something once and play it on your laptop, your partner's desktop, and your home office machine without buying it five times over. Once you authorize a computer, anyone using that computer can play your iTunes purchases on it.

If you sell a computer, give it away, or stop using it, you should deauthorize it so someone else can't play your purchases on it. You can deauthorize remotely from any authorized computer, or you can deauthorize all five at once from your Apple ID settings online.

Key Takeaways

  • Authorization links your computer to your Apple ID so it can play iTunes purchases; you can authorize up to five computers per account.
  • On a Mac, open iTunes or Music, go to Account menu, and select Authorize This Computer; on Windows, the steps are the same in iTunes.
  • You'll need your Apple ID and password to authorize, and the computer must be connected to the internet.
  • Deauthorize a computer before selling or giving it away so your purchases can't be played on it anymore.
  • If you've hit your five-computer limit, you can deauthorize all computers at once from your Apple ID account page online.

How to authorize on a Mac

Open the Music app (on macOS Monterey and newer) or iTunes (on older versions). Click the Account menu at the top of the screen, then select Authorize This Computer. A window will pop up asking for your Apple ID and password. Type them in and click Authorize.

Your computer is now authorized. You'll see a message confirming it, and the date when authorization expires (usually one year from now). You can now play any iTunes purchases tied to that Apple ID on this machine. If you're using Family Sharing, each family member needs to authorize the computer with their own Apple ID to play their own purchases on it.

How to authorize on Windows

Open iTunes. Click the Account menu at the top left (you may need to click Edit first if you don't see Account). Select Authorize This Computer. Enter your Apple ID and password in the window that appears, then click Authorize.

Windows will confirm the authorization and show you the expiration date. Your computer is now linked to your Apple ID and can play your iTunes purchases. The process is identical whether you're using Windows 10 or Windows 11.

What to do if you've authorized five computers already

Apple limits you to five authorized computers per Apple ID. If you try to authorize a sixth and hit this limit, you'll get a message saying you can't authorize any more computers. You have two options: deauthorize a computer you no longer use, or deauthorize all five at once and start fresh.

To deauthorize a single computer, open iTunes or Music on that computer, go to Account, and select Deauthorize This Computer. You'll need your Apple ID and password. That computer is now delinked from your account, and you can authorize a different one.

To deauthorize all five computers at once, go to appleid.apple.com in a web browser, sign in with your Apple ID, click Media & Purchases, then scroll down and click Deauthorize All. This removes authorization from every computer at once. You can then authorize five new ones. Note that you can only use the "Deauthorize All" option once per year, so use it carefully.

Why you should deauthorize before selling or giving away a computer

When you authorize a computer, anyone who uses it can play your iTunes purchases on it. If you sell the computer or give it to someone else without deauthorizing first, that person will be able to play all your music and movies. They won't be able to buy new content with your Apple ID, but they can play everything you've already purchased.

Deauthorizing removes that access. The new owner can still use the computer normally, but they won't be able to play your iTunes content anymore. It takes 30 seconds and protects your purchases. If you've already sold or given away a computer and forgot to deauthorize it, you can still deauthorize it remotely from any other authorized computer, or use the Deauthorize All option online.

Troubleshooting authorization problems

If you see an error message when trying to authorize, make sure your computer is connected to the internet. Authorization requires an active connection to Apple's servers. If you're on Wi-Fi, try moving closer to the router or switching to a wired connection if possible.

If you're entering your Apple ID and password correctly but still getting rejected, your account may have two-factor authentication turned on. If it does, you'll need to use an app-specific password instead of your regular password. Go to appleid.apple.com, sign in, click Security, then generate an app-specific password for iTunes. Use that password when authorizing instead of your regular one.

If you've forgotten your Apple ID password, go to iforgot.apple.com to reset it before trying to authorize. You'll need access to the email address or phone number tied to your account.

What happens after authorization expires

Authorization lasts for one year. After that, you'll need to authorize the computer again to keep playing your iTunes purchases. You'll get a message asking you to re-authorize, and the process is the same as the first time: go to Account and select Authorize This Computer, then enter your Apple ID and password.

This yearly re-authorization is Apple's way of making sure the computer is still yours and still in use. It doesn't affect your purchases — they're tied to your Apple ID permanently. It just confirms that you still have access to the account and the device.

Frequently Asked Questions

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

No. iPhones and iPads sync with your Apple ID automatically when you set them up. They don't need a separate authorization step the way computers do. You can play your iTunes purchases on them as soon as you sign in with your Apple ID.

Can someone else use my authorized computer to play my iTunes purchases?

Yes. Anyone who uses an authorized computer can play the iTunes purchases tied to that Apple ID. This is intentional — it's meant for families or households sharing one computer. If you don't want someone else playing your purchases, deauthorize the computer before giving them access to it.

What if I lost a computer and can't deauthorize it?

You can deauthorize it remotely from any other authorized computer, or use the Deauthorize All option on your Apple ID account page at appleid.apple.com. Keep in mind you can only use Deauthorize All once per year, so use it only if necessary.

Do I need to authorize a new computer every time I buy something from iTunes?

No. You authorize a computer once, and it stays authorized for a year. After that, you just need to re-authorize it. Buying new content doesn't require any new authorization steps.

Will authorizing a computer let someone else buy things with my Apple ID?

No. Authorization only lets people play your existing purchases on that computer. They can't buy new content, change your password, or access your payment information. To buy from iTunes, they'd need to sign in with their own Apple ID.