Hi louiscth,
Try these troubleshooting steps if your iOS devices are not recognized in iTunes for Windows 12.1. I've highlighted the key information here for you. Click on the article for complete details.
iPhone, iPad, or iPod not recognized in iTunes for Windows - Apple Support
http://support.apple.com/en-us/HT204095
Use these steps if your iPhone, iPad, or iPod doesn't appear under Devices in iTunes after you connect it to your Windows PC.
You also might have seen one of these messages:
- The device can't be restored in iTunes.
- A "!" or "?" symbol, plug symbol, or "X" appears next to the device's entry in Device Manager.
- During an update or restore, the device might no longer be recognized by iTunes.
Turn off your computer and your iOS device or iPod, then turn them on again.
Check to make sure that you've installed all required updates for your computer.
Verify that the 30-pin to USB cable or Lightning Connector to USB cable is free of debris and not damaged. If another cable is available, test with that cable instead.
USB cables that are bundled with third-party products or accessories might work only to charge those products and might not transmit data. Also, if you're using a third-party case or extended battery pack, try removing the case and connecting the Apple-supplied USB cable directly to your device.
iOS devices require Apple Mobile Device Support, which should be automatically installed with iTunes. To verify whether it is installed, follow the steps appropriate for your Windows operating system below.
- Move the cursor to the upper-right corner and click the magnifying glass.
- Type Control Panel, and press Return.
- Click "Uninstall a program."
- Verify that Apple Mobile Device Support is visible in the list of currently installed programs.
If Apple Mobile Device Support isn't listed, remove iTunes, QuickTime, Apple Software Update, Apple Application Support, then reinstall iTunes.
Reinstall iTunes for Windows Vista, Windows 7, or Windows 8
If you reinstall iTunes, and Apple Mobile Device Support still isn't installed, you can resolve issues installing iTunes for Windows.
I hope this information helps ....
- Judy