Hi, would you be able to confirm which components you installed when you installed the Build Tools 2017?
If you could go to http://www.wolfram.com/system-modeler/compiler-windows/ and download Visual C++ Build Tools 2017. Then, next to lunch you should see an option to select "Modify"
Then, you will be able to see which components are installed on the right hand side. Please compare those to the components marked in the screenshot under Summary:
If you are missing one or more of the components, you could try and add it by checking the checkbox and selecting modify.
