I don't have a reason why, but you should have another tab after Resources called Power Management. That's where you find the option to uncheck.
Just checked again and that is not in my list, so I guess I will still do what I have been doing and doing the Shut Down, and then pushing the power button to fully shut down the computer when it does what it can. If I don't do this the drives and fan are still running and I have a light on the console that shows that the shut down is not complere.
Are you sure you have the Intel Management Engine drivers from Intel installed? Someone else may know, but is it related to any power settings in the BIOS?
I have tried all the Shut Downs, Left and Right clicks. I removed the Sleep option, since once teh computer would go to sleep it had to be booted to wake up. The only thing that happens as time goes on is that the monitor is allowed to go out. When I want to shut down I do one of the Shut Downs and when the computer finishes, I hold the power button until the shut down is complete. I have this on both a custom built desktop and a laptop. My other laptop works okay. The two laptops are Win 10 home, the desktop is Win 10 Pro.
I can confirm that after downgrading Intel Management Engine Interface driver to 9.5 version from 11, all my shutdown issues are solved.