If you haven't already, you may want to do some research and make sure Windows 10 Home supports dual physical processors. In the past, this has never been the case with "home" editions of Windows.
*edit*
Anecdotal, but for what it's worth:
https://answers.microsoft.com/en-us/...19c823f?auth=1 - second-to-last post. Grain of salt, etc.As far as I'm aware Windows Home 10 will only recognise one processor.
I recently installed Windows 10 Home to a dual CPU system and only a single processor was recognised. I upgraded to Windows 10 Pro and now both are recognised.