The Windows update error 0x80070103 is one that Microsoft is fully aware of. They have cited duplicate driver installs as the reason behind it and also advised users that the error is harmless. That being said, even if you don't fix the error proactively, your system's functionality won't be affected. Hence, you can safely ignore the error if you can live with it. If you really don't like the annoying error prompts and want to resolve the issue, you can attempt the fixes we've listed above.