HOW TO MAKE A 2ND LOGICAL DRIVE AN NAS DRIVE accessible by network devices

Hello, my main computer (desktop) has an SSD that I use for my primary functions, and a 4TB spinning hard drive with all my media, backup files, etc. I would like that 2nd drive's media accessible to home network devices such as my Roku, my home stereos, my laptop, etc.

It's very easy to get the primary drive (logical C drive) to be setup as NAS - I've setup multiple folders on it - it works perfectly - all other devices on the network can get to those files. I've not, however been able to find out how to configure my 2nd drive (the 4TB logical drive D) so that my ROKU and home stereo see the files.

I've looked elsewhere and it seems no one else has ever posted this question. Note, the media players on the ROKU and home stereo do not have login capability. This must be setup so that a login is not required (simply sharing of the C drive enables this with no issue).

What's the trick?

thanks in advance.