If you're interested in something a little more feature-filled, there are numerous apps out there. Nevertheless, it's reliable and gets the job done.
It also supports DVDs, and while you're not paying for it, you're only getting a bare-bones Blu-ray player.
Perhaps a better -and also free- method is the Leawo Blu-ray player application. It's not necessarily the best option, but if you're a heavy VLC user already, it's at least an option. Natively, VLC won't just play your Blu-ray discs, so you'll need to do some tweaking. The first option to mention is the good old Swiss Army Knife, VLC.
You can watch the actual discs on your Windows 10 PC without having to convert them to a digital file.