How to Fix Error -50 on iTunes

ITunes can occasionally return inscrutable error messages -- in particular, the dreaded "Error (-50)" message when you download music or movies from the iTunes store. You get this error for a couple of different reasons: generally, it means you have a firewall or virus program blocking the download, and need to allow iTunes to access the Internet. Another reason pertains only to videos: the downloaded cache files for the video are causing the problems. To resolve it, you need to delete the files.

Antivirus Software

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Close iTunes.

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Open your antivirus/firewall software.

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Set the software to allow data from these domains: itunes.apple.com, ax.itunes.apple.com, albert.apple.com or gs.apple.com. The exact process will vary depending on the software you have.

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Restart iTunes.

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Attempt to download the purchased music or video again.

Video Temp Files

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Browse to your computer's downloads directory. For Windows 7 machines, it is typically "\Users\username\My Music\iTunes\iTunes Media\Downloads\" -- replace "username"with your username.

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Find the folder containing the temp file. In Windows 7, it is named after the video and has a ".tmp" extension.

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Drag the .tmp folder to the Recycle Bin.

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Open iTunes.

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Select "Store," then "Check for Available Downloads."

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Enter your account name and password when prompted.

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Click "Check." Your file starts to download again.