What exactly are you experiencing?
Please explain the workflow.
What OS do you wok on?
If there is any error message,please share the screen shot.
I am having the same problem. I open a pdf to EDIT. But when i click on EDIT, i get the window that says "Learn More" and that takes me to the website to purchase DC. I used my DC just a few days ago with no problem. I even tried to intall again but it says that DC is already loaded on my computer.
Andrew, you now have two apps, Acrobat Standard (or Pro) and Acrobat Reader. It's easy to run the wrong one, which is what you've done. Please take a short time to run each one, so you can recognise the difference then this shouldn't trip you up again.