I've got this default PDF file opener in Windows 10 that drives me nuts. Every time I activate the cursor to navigate the page these banners drop in from the top and side and it's just irritating. I don't know how to change the default PDF app, though. I'd like to just change it so when I clicked on a PDF link on a webpage, it would open up in the adobe app. Any help? Edit: I guess it's not Windows 10, it's Google chrome, because I just tried it in Firefox and it was a different PDF app. So I guess the more general question is how to you change it within a browser?