It's literally been downloading updates for a whole full 24-hour day. I have fibre. This is not a low end pc. Wtf Windows 10
@Siphonay to do that big of a version update, I'd normally recommend downloading the latest Windows 10 iso/usb and then doing an upgrade install using that. Should be much faster.
Of course if you're just gonna put Linux on it there's no point.
@kepstin it's already got Linux