My USB setting was also missing in Win10.  Googled and found this.....https://answers.microsoft.com/en-us/windows/forum/all/usb-settings-in-power-plan-options-on-windows-10/38753b89-65d0-49c1-8f91-2bb50f9b19a0
I was successful using Method 2.  My "Attributes" file was already there so I didn't need to create a new one.  I just changed the setting from 0 to 2, and presto the USB selection appears and I was able to disable it.   Herb WB8ASI