Right click on SolidWorks explorer only show pack and go

I'm using SolidWorks 2015 on Windows 7, and I have a problem when I right click on Windows Explorer, only the function "pack and go". I've tried several ways to improve it, such as:

- Changing these options open with the Solidworks Launcher

- Make improvements and modifications SolidWorks installation

- Trying to follow a few ways shared in this forum

- To unregister and register (regsvr32 -u and regsvr32)

But until now the problem is not resolved, for that I beg for help to resolve this issue.

thank you

SolidworksImport export