adobe acrobat reader dc update 15.023.20070

My company uses a web proxy and firewall. So really my question is, is there a way to force PDFs to open in Reader rather than Acrobat other than through Default Programs? Any help would be greatly appreciated. These PDFs are being accessed through our local intranet which is on SharePoint 2013. I have checked out the default application for individual users as well as myself and it is set to Reader but the PDFs still persist in opening in Acrobat.

Since the installation of Acrobat, any PDFs being opened from Internet Explorer 11 are opening up in Acrobat and telling users that they need to accept the user agreement before they can open their PDFs, which they cannot accept as they have been denied access to Acrobat. We have restricted access to Acrobat to two users by editing permissions on the exe as they are the only ones that require access to the application.

These servers also have Reader DC installed on them. We have a RDS 2012 R2 environment for our users and I have recently installed Acrobat Standard DC on to our host servers.

Adobe acrobat reader dc update 15.023.20070