I still think someone should build some applet that will check and see how many of the umpteen gigabytes that will make up Win10 are actually needed, not on install but also on startup. Then give the user to whack or disable them. Yes I can look at task manager, but how many of those puppies are really hunting and how many are just lying on the porch?
Also, I tried Build whatever in February. I couldn't get it off my PC fast enough. I'd sooner go back to XP.