The first solution on the list of 5 ways to fix iPhone error 0xE8000001, is the iTunes software update. In many posts here, which are related to the various iPhone errors we always suggest the iTunes update, because it is the crucial part of the process. If it is outdated, you can expect a wide range of irritating issues. So, if there is a new version, install it, and try again.
If the previous solution did not work for you, uninstall the software from your computer, and then install the latest version. You’ll need just a couple of minutes.
To do this, press Ctrl, Alt, and Delete simultaneously on your computer’s keyboard, in order to start the Task Manager. The processes you should stop are iPodService.exe, AppleMobileDeviceService.exe, iTunesHelper.exe. After you close them, restart your computer.
There are several things you can try, related to the USB. First, change the USB port you are using at the moment. If that does not work, remove all other devices you don’t need from other USB ports. If that does not work either, see if there are USB chipset driver updates available.
Many users have set automatic updates on their computers, and that’s the best option. However, if you did not set automatic updates, make sure to check if there is an update available. Perhaps you missed some significant update recently, which is why the problem occurred. For many, this easy fix solved it.