Vray installation

Hi there

I’m running rhino 6 and tried to install Vray next. I completed the installation process as instructed by chaos group and it says the installation was successful, but when I go to run vray in rhino it doesn’t appear to be there.
I first went to render> current render> and rhino render was the only option available
I then went to the render properties and it was not there either.
So I went to the plug in manager and vray does not appear in the list of plug ins.
I tried uninstalling and reinstalling vray a few times with no luck.
Any help is much appreciated, thanks.