>If you marked your connection as metered, I believe it respected that and wouldn't download it.

I don't recall windows 7 having any way to explicitly mark your connection as metered.

As for Windows 8 (I believe it's the same as Windows 10), you can't mark a wired connection (ethernet) as metered if I recall correctly, even though you might be on a satellite internet connection for instance which most definitely is heavily metered.

I can't speak for Windows 7, but I believe you could mark an ethernet as metered in Win 8, but you definitely can't in Win 10.

Edit: I take it back, I was wrong. No ethernet metering. You can do it via regedit, but no way to do it from the UI.