I want to ensure that some update won\’t sneak in that will install some Windows 10 "get now" garbage, or something that I thought was optional and would now be deemed important. I am trying to avoid Windows 10, because this machine is really a server. I intend to put Server 2012 R2 on this box at a later time, but haven\’t gotten to it.
If I were you, I\’d let optional stuff remain optional until the deadline passes. Another month or so of leaving out optional things shouldn\’t hurt.