Hi,
The PC is a Custom Built Desktop with an ASUS Z-170-A ATX motherboard. I am running windows 10 Home edition. The listed OS build is 14393.1944.
I have not tried updating via the Media Creation Tool yet.
I have however tried installing the installer from the tool from the "Update Now" button from the same webpage. https://www.microsoft.com/en-in/software-download/windows10 This also failed.