
Find and uncheck the Automatically Sync when iPhone is connected option and save the settings.

Open the Summary You will see the options in the right panel. Click on the iPhone It is located under the menu bar. It’ll only be activated if you open the iTunes app. Use the original USB cable from your iPhone, iTunes will open automatically. Here’s what you can do to prevent iTunes from starting automatically at all. If you don’t want iTunes starting when your computer boots up, you can turn off the iTunes Helper application. You’ll still have to follow the same steps as above in Windows 8 & 10 to stop the iTunes application from automatically starting when you’ve connected your iPhone, but there’s also a second way to disable the iTunes app from auto-starting all together. That wasn’t too hard, right? Nope, we didn’t think so. Next time you’ve connected you iPhone to your computer, iTunes should not open automatically and start syncing with your device.

