If iPod Is Not Recognized by iTunes
If your iPod nano, iPad, or iPhone is not recognized by iTunes or your computer, you should first verify the system requirements. To do this, make sure that your computer has the USB 2.0 port and the latest version of iTunes. If your computer does not meet system requirements, you will need to upgrade it before using your device. The computer must have one of the following operating systems: Mac OS X (version 10.6.8 or later), Windows XP (Service Pack 2 or later), Windows Vista, or Windows 7. You should also make sure that you have the latest software updates installed for your computer operating system. To update your Windows software, select Windows Update from the Tools menu of Internet Explorer. To update your Mac OS software, choose Software Update from the Apple menu.
If your devices still don’t appear under Devices in iTunes after you connect it to your Windows PC, the device might not be restored in iTunes. An exclamation point, question mark, plug symbol, or “X” will appear next to the device’s entry in Device Manager.
If your iPhone, iPad, or iPod touch won’t connect to iTunes on your PC, try the following solutions.
Restart the computer: turn off your computer and your iOS device, then turn them on again.
Update your computer: check to make sure that you’ve installed all required updates.
Update iTunes: Check that you have the latest version of iTunes installed on your computer.
Make sure your iOS device trusts your computer: if you connect your iOS device to your computer and see “If you have not connected your iOS device to this computer before, unlock the device and tap Trust,” make sure that your device trusts the computer. If you use Windows XP and you see the trust alert on your device repeatedly, make sure that you have iTunes installed.
Check the USB cable: Verify that the 30-pin to USB cable, or Lightning Connector to USB cable is free of debris and not damaged. You may test with another cable if you have one available. Verify that Apple Mobile Device Support is installed. iOS devices require Apple Mobile Device Support, which should e automatically installed with iTunes.