iTunes - Download iTunes Now. Troubleshooting iTunes installation on Mac OS X. Languages If you are having trouble installing iTunes on a Mac OS X computer, here are some things to try. Before you install Be sure that you have the administrator username and password available. You will need both to install iTunes. Make sure you have enough disk space. Even small applications may require a few hundred megabytes of space to complete the optimization phase of the installation. Check your hard disk before installing. Download the latest installer Open Safari or another web browser. Once the file is downloaded, a new Finder window appears containing two items (below). A "Read Before You Install iTunes" file. Install iTunes Quit iTunes if it is currently open. Opening iTunes It's possible that clicking the iTunes icon in your Dock or double-clicking an iTunes icon on your desktop could open an older version of iTunes.
Double-click your hard disk. If you notice another copy of iTunes in the Dock after following these steps, here's a way to take care of that: Quit iTunes. Trouble installing iTunes or QuickTime for Windows. Languages If you're having issues installing iTunes or QuickTime for Windows, try these troubleshooting steps. If one step doesn't resolve your issue, proceed to the next. General installation troubleshooting Choose Start > My Computer (or double-click My Computer on the Desktop). In My Computer or Computer, open the C: drive. Open Documents and Settings. Click the View tab. Windows Vista and Windows 7: Choose Start > Computer. Click OK. After you empty your Temp folder and remove iTunes and its related components, you can install the latest version of iTunes. Additional troubleshooting After performing each of the steps below, you'll need to remove iTunes and its related components and install iTunes again to determine whether the issue was resolved.
Additional Information If you need to install QuickTime or if iTunes installs but the QuickTime installation didn't complete, try downloading and installing the standalone version of QuickTime. Last Modified: Nov 13, 2013 One Moment Please. iTunes for Mac: How to copy purchases between computers. iTunes for Windows: How to copy purchases between computers.