I run Office 2016 (64 bit) ever since it was released but still keep getting updates to Office 2013. The latter is not installed, however I have two Office folders in Program Files: Microsoft Office and Microsoft Office 15.

First I worried that these updates come instead of those to Office 2016. Then I was advised that my version of Office 2016 keeps updating via OfficeClickToRun, and those don't appear among Installed Updates. Hence, hopefully, I don't need to change the updates just turn those to Office 2013 off. How to do that?
Thanks a lot.