They are wherever the system put them (said I was a dinosaur!).
They had definitely finished downloading and showed me the "run" option on screen.
I suspect that I have something in my settings that is preventing access.
Also, I physically don't know how to "run" that second programme, because I can't find it and I don't seem to be able to find a "run" option either. If I go into C: \User\Owner\ there isn't an "AppData" to be seen.
Sorry, but I really am a computer thickie technically.