5 reasons you shouldn't use Windows as a NAS OS
If you're considering using Windows as your NAS OS, maybe don't.

I recently turned a mini PC into a very basic NAS for my home, and I set up my software on top of a basic Windows installation that came with the device. In the article, I warned against using Windows for this kind of project, but that it certainly works for a basic setup if you aren't looking to do too much.