I suspect that the question is just poorly worded - I think he meant to ask "why are programs in linux so hard to find" (if you look at his other questions they are not mega technical but they are also not questions that a novice would be posting)
When I was a teenager I would lurk around there a lot to "hack" stuff.
[0] - I don't know how's the situation with Windows 10, but on Windows 8 I've noticed some stuff tends to install to %APPDATA% instad.