If a missing folder or incorrect permissions prevents iTunes authorization

To run properly, iTunes needs the Shared folder (Mac) or an SC Info folder (Windows). If these folders are missing from your computer, or have incorrect folder permissions, you might have issues with iTunes.

A missing Shared or SC Info folder, or incorrect permissions, might be indicated by one of the symptoms below:

  • You can't complete a purchase from the iTunes Store.
  • You see an alert message says that you don't have permission to modify your iTunes Media folder when you try to download from the iTunes Store.
  • You can't play content you purchased from the iTunes Store.
  • An alert message appears that says "There was an error storing your authorization information on this computer. The required directory was not found or has a permission error."

To resolve this issue, follow the steps below.

Mac OS X

Windows

Mac OS X

  1. Log in to your computer using an administrator account.
  2. Click anywhere on your desktop to make sure that you're in Finder. From the menu bar at the top of your computer screen, choose Go > Go to Folder.
  3. In the box, type /Users.
  4. Click Go.
  5. In the window that appears, look for a Shared folder.

If you see a Shared folder

  1. In the same window as the Users folder, open the Applications folder. 
  2. Open the Utilities folder.
  3. Open Terminal.
  4. This next step involves modifying permission settings by entering commands in the Terminal application. Users unfamiliar with Terminal and UNIX-like environments should proceed with caution. The entry of incorrect commands might result in data loss or unusable system software. Improper alteration of permissions can result in reduced system security or exposure of private data. This option requires a non-blank admin password.

    If you're using Mac OS X 10.6 or later, type the command below into the Terminal window:

    sudo chmod -R 1777 /Users/Shared

    If you're using Mac OS X 10.5.8 and earlier, type the command below into the Terminal window:

    sudo chmod -R 777 /Users/Shared

  5. Press Return.
  6. Quit Terminal.

If you don't see a Shared folder

The steps below will recreate the Shared folder if it is missing and make sure that it has been assigned using the correct permissions.

  1. In the same window as the Users folder, open the Applications folder. 
  2. Open the Utilities folder.
  3. Open Terminal.
  4. This next step involves modifying permission settings by entering commands in the Terminal application. Users unfamiliar with Terminal and UNIX-like environments should proceed with caution. The entry of incorrect commands might result in data loss or unusable system software. Improper alteration of permissions can result in reduced system security or exposure of private data. This option requires a non-blank admin password.

    Type the command below into the Terminal window:

    sudo mkdir -p /Users/Shared/

  5. Press Return.
  6. When prompted, enter your administrator account password. Then press Return.
  7. If you're using Mac OS X 10.6 or later, type the command below into the Terminal window:

    sudo chmod 1777 /Users/Shared

    If you're using Mac OS X 10.5.8 and earlier, type the command below into the Terminal window:

    sudo chmod 777 /Users/Shared

  8. Press Return.
  9. Quit Terminal.

Windows

The steps below remove the SC Info folder if it is unusable. iTunes should create a new folder with the correct permissions after the old one is removed.

  1. Quit iTunes.
  2. Access the file system on the computer:
    Windows 8: Move the cursor to the upper-right corner of the computer screen. Then click the magnifying glass. In the search bar, type %ProgramData% and press the Return key.
    Windows Vista and Windows 7: Click Start. In the search bar, type %ProgramData%, then press the Return key.
    Windows XP: Click Start and choose Run. Type %allusersprofile%, then click OK.
  3. Show hidden files:
    Windows 8: Click View, then click Options. On the View tab, select "Show hidden files, folders, and drives."
    Windows Vista and Windows 7: Click Organize, then "Folder and search options." On the View tab, select "Show hidden files, folders, and drives."
    Windows XP: Click Tools, then choose Options. From the View tab, select "Show hidden files and folders."
  4. Navigate to the SC Info folder:
    Windows Vista and later: Open the Apple Computer folder, then the iTunes folder.
    Windows XP: Open the Application Data folder, then the Apple Computer folder, then the iTunes folder.
  5. Right-click the SC Info folder, then choose Delete from the pop-up menu.
  6. Restart the computer.
  7. Open iTunes.
  8. Authorize your computer.

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