You can use Android Apps on your Windows PC. This is because you just have to download them from the Android store and install them into the PC. However, not all apps are compatible but you will be notified incase. Read more on http://www.technewsworld.com/story/77647.html.
I think there was a program called "Bluestacks" that you can use to emulate android apps on your computer. I tried it for a while, but it seemed a little buggy to me. I don't know. Try looking into that, though.