Ya, then just install the N version. It's not some weird region locked thing. If you tell Microsoft you don't have a product key, you'll get a list of windows versions you can install, and you just select the N version.
Their main income is from businesses. They don't care what an individual user does.
That said, most motherboards already have a license key for Windows attached. Or you can just use a Windows 7 or 8 key you have laying around. I believe they wanted to stop being able to do this, but it still isn't implemented.