My first generation Surface Pro only has 64GB of space, roughly 20 of which I’m allowed to use (the rest of it is kind of forever “lost in cyberspace” – or so it seems). It’s been running all Windows 10 updates fine until a few months ago, when Windows kept bugging me that the latest security patches needed to be installed.
I was happily running Version 1703 up to that point and never had an issue with space limitations or deferring updates. Until early 2018, when Microsoft started aggressively forcing the Fall Creator’s Update down my throat.