This article explains how to fix issue like "NVIDIA display settings are not available" OR "An Nvidia card was not detected in your system" in your Asus laptop. The Error looks like And GPU is not present in armory crate as well You will not be able to Nvidia driver in Device Manager as well To fix this go to your armory crate software and check if Eco mode is enabled in GPU mode. Select any other mode i.e., standard If you do not see it in your Home Page, go to device and select GPU power saving option and select any other mode than Eco mode. As you select any other mode your GPU will be back This happens because Eco Mode Completely disables GPU for power saving from armory crate Made a video as well regarding this do check it out.