Help Needed Concerning Adobe Flash Player.

I have an Acer Laptop Windows 8, and I believe Flash Player is already installed in this.

However, I keep getting messages telling me to get Flash Player in order to view an online video.

I think I may have accidentally uninstalled Adobe, but the system is still telling me I have Flash Player.

Further more, I am not as computer literate as some of you good people and I'm having problems how to use this site as I've never used a forum before now.

I would be grateful for someone to advise me on these issues?

Kind Regards, Toots11