iTunes Diagnostics gathers and displays information about your computer. It doesn't fix issues. You can use the information iTunes Diagnostics provides to identify issues, but you might need to follow specific steps in another article or get more help from an Apple Advisor to fix the issue.
Run iTunes Diagnostics
- Make sure that you have the latest version of iTunes.
- Open iTunes.
- From the menu bar at the top of the iTunes window, choose Help > Run Diagnostics. If you can’t see the menu bar, learn how to turn it on.
- Choose one or all of the available tests, and click Next.
- Run through the tests. After you finish each test, you might see links to support articles that can help you resolve the issues you're experiencing.
Save your results
When the tests finish, a summary displays.
If you want to copy the summary to your clipboard to use in a different program, click "Copy to Clipboard."
If you want to save the summary to your computer so that you can send it to an Apple Advisor, click Save. When prompted, choose where on your computer that you want to save the summary, and then click Save again.
Two files called "iTunes Diagnostics.RTF" and "iTunes Diagnostics.SPX" save to your computer. You can view the RTF file with a text editor, and you can share both files with an Apple Advisor.