Instead of downloading an ebook it downloads ADE?

Hello, i've been trying to download ebooks to do university work and every time i download without fail, even tried the free ebooks adobe provide on the site to instruct how to download ebooks, it instead downloads ADE? It won't download the books at all, just a link to install it again and again when i already have it installed. I've uninstalled it, reinstalled, restarted my laptop etc and nothing seems to be working?

Please help