Occasionally, an application may require that you disable Efficiency cores that are part of your Intel CPU. 
This is a rare need, but, if you are instructed to do so by a software manufacturer, you may disable E-Cores in your Rok Box's BIOS/UEFI Configuration. 


To do so: 
 
Boot the system and press DEL repeatedly as it boots. 

The BIOS will load. 

Once there, navigate to the Tweaker menu: 

In that menu, set Hyper-threading technology to Disabled. 

Then scroll down until you see CPU cores enabling mode


Set this mode to Selectable Mode. 

Under Active P-Core/E-Core, set the E-cores to disabled. 

Then navigate to the Save & Exit tab and select Exit saving changes. 

The PC will reboot and load Windows.