Get started
Before changing your security software's setup:
Make sure that the date, time, and time zone are set correctly on your computer.
Log in to an administrative user account, not a guest account.
Make sure that you have the latest version of iTunes.
Update OS X or Windows.
Update your security software.
If your device isn't recognized, find more information on what to try if your iPhone, iPad, or iPod isn't recognized in iTunes for Mac or Windows.
If you're still having trouble, continue to the next section.