I would guess Windows, as your instructions don’t really make sense for Windows!
(as far as I’m aware there isn’t anything to download when using Windows Flash Player - it just accesses the URL directly):
Flash Player Doesn't Work
Nevov
#21
WilliamBac
#26
I am not joking, I hit the back of my computer really hard and it works!!! So… @moderators please close
[Alllllllll-righty, then. OB]