How come I cannot run GPU and only CPU on Build 1465?

I was told GPU won’t work on this build, is that true? How can I get TD to work on GPU?

Support for GPU simulation on Nvidia GPUs is supported in all builds of TurbulenceFD.
Please try removing any version of TFD you have installed, then install the latest build from
(Professional Edition) https://jawset.com/install
or
(Free Learning Edition) https://jawset.com/try