Click on the "Summary" tab in the iTunes device manager. Once iTunes has completed syncing with the attached iPod, click on the "Summary" tab to check for updates and manage the contents of the iPod.
Click on "Check For Updates." This will cause iTunes to see if there are any system updates for your iPod's operating system. If there are any updates, a dialog box will appear with the upgrade information.
Select "Download and Install." ITunes will download the system upgrade from the Apple server and install the upgrade onto your iPod. During this process, the operating system of your iPod will be upgraded, but no changes to the contents will be made.
Apple occasionally releases updates to the operating software for iPods that improve functionality, add new features or improve the overall operation of iPods. When an update is released, the iTunes software program that manages the content of iPods will alert you about the update. You may be concerned that the update to the iPod will erase the content on the device, but Apple built iTunes to handle upgrades without harming the files stored on the connected iPod. This process works for iPods connected to Macs and PCs.
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