Again, I give up. I have created an account with Microsoft but the only download I can find for Windows 8 is an upgrade version. I need an OS for a computer sans OS. Thanks again for trying to help me. I'll watch the below site to see how it goes.
No. Microsoft told me they don't download complete versions of 8, just upgrade versions. I'm not going to pay for an upgrade which I may not be able to use in the NUC. Intel has stated that they will be working with their partners to bring out various SKUs. I will wait.
Note: Check out all the reviews of the NUC. I haven't found one that addresses the OS.