You can force the upgrade if you don't get the option: www.theverge.com/2015/7/31/9077997/microsoft-windows-10-clean-install-how-to-guide
I tried last night, but it failed with some meaningless error. Will try again when I'm less busy (cleaning 30 odd bottles for beer).
I tried last night, but it failed with some meaningless error. Will try again when I'm less busy (cleaning 30 odd bottles for beer).