How to change NVIDIA Optimus graphics settings   July 2021. Windows 10 also has it own settings now and Chief has now made a KB article about how to set that up too.   https://www.chiefarchitect.com/support/article/KB-03140/forcing-chief-architect-programs-to-use-a-specific-graphics-card-in-windows-10.html   Dec. 2020 :  Window's 10 also now has a some built in control of what graphics processor is used but this is my preferred method....