You're not supposed to download Visual Studio, you're supposed to download the (64-bit) Visual C++ redistributable. https://www.microsoft.com/en-us/download/details.aspx?id=48145
You will need to use a development version to get the Compute button. It isn't available in 4.0.2.
You will need to use a development version to get the Compute button. It isn't available in 4.0.2.
