Everytime Acrobat Reader updates (which appears to be daily now) it adds a new shortcut icon to the desktop. This has been complained about for YEARS by users.
Adobe - you need to stop shoving these down our throats. You have a good product that I set as the default for opening pdfs, but I will never need a desktop shortcut to open your program. I prefer to keep my desktop empty of all icons.
This 'feature' alone is making me consider using another product.
Adminahusain (Software Engineer, Adobe) commented
Sorry for the inconvenience, we have fixed this issue in the latest version of Acrobat.
Please update to the latest version and let us know you still face the issue.