I have texlive 2016
installed on my windows OS, to use texlive 2017
you need to download it (over then 2.5GO), I think this is a tedious operation every time you want to pass from an old texlive to a recent one.
My question is is there a posibility just to upgrade texlive 2016
to texlive 2017
without removing, downloading, and installinig the entire texlive?