There are some common Error code that you face while using iTunes like iTunes Error 0xe8000015.if you see an error code when you use iTunes to update or restore your device then you need to follow the given below steps
- Update iTunes.
- Get the latest version of iTunes for your computer.
- Update your computer. Install updates for your Mac
- Plug directly into your computer and restart
- Check your computer’s security software.
- If not done Try again