User had older versions of Dynamo installed, 1.0.x, but when he downloads and installs version 1.3 it doesn’t install.
The installation goes through all the dialogs, and there are no error messages. In the end, it doesn’t show up in Revit 2016, and does not show up in Windows install/uninstall.
Are you able to open Dynamo Sandbox ?
Please try run DynamoAddinGenerator.exe
C:\Program Files\Dynamo\Dynamo Revit\1.3