I have an apple MacBook, have reader installed, use daily without problem. today asking for software update and that is where I was / am having issues. I thought a 2 minutes call / screen share would have guided me to a fix..... unfortunately no such luck.....
This is a user-to-user forum, and we might be able to help you if you tell us what the issue is — what is happening, what is the error message, things like that.
We also need to know your operating system and the version of the free Adobe Acrobat Reader that you are using.