3D Experience Launcher Installation Problem

Hi,

I have designed two different parts and want to assembly these two parts. When I go to 'Assembly Design' on compass, I get a pop-up to install 3D Experience Launcher as below.

However, I have already installed it on my computer. Here is the screenshot.

I uninstalled the program,deleted related folders in program files and reinstalled it but, nothing changed.

Kindly request how to solve it? 

Thanks,