Not the downloads for other machines, or the driver updates, turn them both off but you do need the security updates and that is true for any operating system, yes, Linux too, though they are not as onerous as for Windows.
Windows is a special case, like it or not, it is the dominant PC operating system and so presents the largest target for the ne'er do wells. Also, Microsoft does describe the vulnerabilities and the patches for them in sufficient detail to allow system admins to make a rational decision about when to deploy them. Unfortunately, this also gives the ne'er do wells clues about where to look for their next hacking opportunity. Many of these exposures are similar, if not common, among the various versions of windows and that is why it is so dangerous to use an unsupported version, XP or Vista now and 7 in 2020, online.
You can defer the professional, enterprise and educational editions of Windows 10 and can delay the home edition by setting the restricted bandwidth option, until you choose to install them. A friend with an unlimited data plan can be a help here! But I think that install them, you should.