Honestly, just modify your BIOS with a SLIC 2.1 table, and get hold of any certificate that you can install using slimgr. Seriously, a couple of hours on My Digital Life forums will save you lots of aggravation.
Personally, I much prefer Linux, and for most people Libre Office, Chrome / Firefox, GIMP, etc. is all that is needed. For gamers, Steam supports Linux now as well.
Sadly, for us electronics or engineering dudes, pretty much all the software and drivers are Windows based.
Ok, we have KiCAD and sigrok which I will fully support with open source code additions myself when I get to make some! But really, Windows is it when it comes to drivers and stuff like that.