Clicking on a file starts MS Office App, but doesn't open the file

When I attempt to open an Office 2013 document, the correct app starts with a blank document instead of the document I clicked on. If I attempt to open the document within the office app (File > Open), I get a blank document. I have done an Office 2013 repair, re-associated by file-type, and re-associated by application. The correct office app icons appear in Explorer.

This problem is with all Office 2013 applications, except Outlook. The problem does not appear with non-office file-types or apps, for example; clicking on a PDF file opens adobe reader with that file.

Type in the run Winword /safe then try to open your file