So once in a while, iTunes reminds us that things aren’t going to be smooth all the time. I mean, what do you say when all of a sudden, you can’t authorize your computer in iTunes?

But this thing happens and it’s not as mission-critical as, say, iPhone not switching on. The solutions are easy to try too and in all probability, you can fix the “unable to authorize” issue faster than you thought.

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There can be three main reasons why iTunes refuses to authorize your computer.

Can't Authorize My Computer In iTunes

  1. You’ve authorized 5 computers with your email ID already
  2. There’s something wrong with your Apple ID / iTunes sign-in
  3. There’s something wrong with iTunes/ some file. Let’s delete it.

#1: The simplest solution if you’re unable to authorize a computer is to De-authorize all computers once and then try again. Of course, it’s a bad deal but it works most of the time. “Bad deal” because you’re going to have to re-authorize all other computers too.

To de-authorize all computers at once and solve the authorization problems, you’ll first need to satisfy a criteria: you should have authorized more than 2 computers with the same Apple ID. Once you’re sure of this, proceed:

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  • Open iTunes
  • Click on the iTunes Store
  • If you’re signed in, click on the account button and click on View Account.
  • If not, click on the account button and sign-in.
  • Within this window, you should see a “De-authorize All” button. If it’s enabled, click on it. (If it’s not, you haven’t authorized more than two computers)
  • After this, try to re-authorize from the menu. (Press Alt in Windows to reveal the menu)
  • You can “Authorize this Computer” through iTunes Store (on the left) too.

#2: Should this not work, this could be a problem with your Apple ID. An easy way to fix this would be to logout of your account in iTunes and then login again.

On a side-note here, if you are reading this only because iTunes throws an “authorization-related” error when you try to play songs, you should try to remove the songs from the library and the re-add them again.

#3: Now this final method gets a little into Application folders. Before you dive into this method – which has a spectacular working record – you might want to try re-installing iTunes on your computer. Once you’ve done that, if authorization still throws up errors, here’s what you do:

If you’re running Windows 7/Vista:

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  • Open Computer
  • Click on the “Organize” in menu, and click on “Folder and Search options”
  • Click on the View tab
  • Under “Hidden files and folders” look for “Show hidden files and folders” and check it.
  • Click OK to apply the changes
  • Now go to C:/ProgramData/Apple Computer/iTunes
  • If there’s an SC Info folder shown, delete it.
  • Quit iTunes and re-open it again. Authorize your computer.

If you’re running Windows XP:

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  • Open My Computer
  • Go to Tools → Folder Options
  • Under “Hidden files and folders”, check “Show hidden files and folders”
  • Apply the changes
  • Go to C:Documents and Settings → All Users → Application Data → Apple Computer → iTunes
  • Delete the “SC Info” folder
  • Quit iTunes and re-open it again. Try to authorize your computer.

Did that fix the problem? Let us know!