Well, that's the dirty deed done at last. Decided to install using the media creation tool and all seems to be fine. All my apps ( including gaming stuff like steam ) seem to be working ok, and all hardware recognised and working fine. Coming from Windows 7 I feel it's going to take me a bit of time getting used to Windows 10 if I'm being honest. Cortana feels like a gimmick to me ( don't use Siri on my iPhone for reference ). Now to have a good look at settings and switch off sharing wifi etc lol.