If the error exits all the time, your iOS device is equal to a useless one. Here will recommend you some ways targeted to different situations.
#1 Check for some external factors
1. Inspect the connection between your iDevice and computer. Is the cable loose? Then reconnect it. The cable cannot work? Try another cable.
2. Check for the network on your iOS device.
3. Try another computer.
#2 Inspect some internal conditions of the device and the computer.
1. Upgrading your Windows operating system.
2. Restart both your device and computer.
3. Select Trust the computer when your iDevice plugging in.
#3 Upgrade the iTunes to the latest version
If the cable works well, then there may be something wrong in iTunes, such as its outdated version. You can try the second solution as the following step:
Run iTunes > Click the Help button > Select Check for Updates
#4 Reset Lockdown folder
If the iTunes version is latest, error still displays. Then you can try to reset Lockdown folder.
Step 1: Press Windows + R to the Run box. Input %ProgramData% into the Open field, and then click OK.
Step 2: Select the Apple file and double click it.
Step 3: Choose the Lockdown folder with right-click. Rename the folder to Lockdown.old.
#5 Uninstall and reinstall iTunes
Uninstall and reinstall iTunes.
Here’s how to delete iTunes and reinstall it:
Step 1: In the search bar, type iTunes.
Step 2: Right-click the iTunes application on the search results and select the last option Uninstall.
Step 3: Wait for the process to complete.
Step 4: Restart your PC and open the Control Panel.
Step 5: Select Apps & Features.
Step 6: Remove the following programs in chronological order:
Apple Software Update
Apple Application Support (32-bit)
Apple Application Support (64-bit)
After uninstalling iTunes successfully from your Windows 10 computer, reinstall iTunes. Get the latest version of iTunes from the Microsoft Store. Follow its guide to install it. Restart your computer again.
Note: If something wrong in iTunes, these methods above can help you to fix it. But they are kind of complicated. If you have taken all the measures and the error still occurs, then you can try a system repair tool as follows. You don’t need complex operations to use it. With Joyoshare, you can repair error 0xE80000A with only some clicks.