Hi,

I was trying to open a file this morning, and when a pop-menu asked what application I wanted to choose (from a list) to open it, I clicked on Adobe Reader - just as a guess.   After that,  just about all my desktop icons are Adobe icons, and when I click on them, the pop up menus says I can't access the file.   These icons also show up on my menu of all my MS Office programs like Outlook, Word, Excel,  etc.
Tech support at Adobe recommended I use System Restore, but it also is now an Adobe icon, so I can't open it.    If anyone can help reverse this, I'd greatly appreciate it.

Please help.

I didn't find the right solution from the Internet.

References:-
https://forums.adobe.com/thread/647210
Online Video Production Service

Thanks!