Flash Player Preventing Storyline Opening

Hi there

I'm trying to launch Storyline (having not done so for a very long time) and i get a message telling that "flash player 10 or higher for Internet Explorer is required to run Articulate Storyline."

It then asks me to go and get it, but when I do I'm told that it's already integrated into internet explorer and windows 10, so I don't need to install it. On top of that, I can see in the settings that it is enabled.

So, I used Firefox to actually get the file and I have installed it. But, the same message appears when I try to launch Storyline. Therefore, I'm unable to use the application because of this. Very frustrating ...

Can anyone help? I'd be extremely grateful. 

Thanks

Phil