Is there any way to disable Windows Defender from doing Quick Scan? I always wonder why I keep hearing my computer CPU and my water pump go full throttle when I'm off my away from my desktop. So finally realize it's the stupid Quick Scan from Windows Defender. Can't find any way to turn it off. Is there any way to turn off this annoying option? Another stupid thing in Windows 8.1 is that they took out the Scheduled Scan under Settings in Windows Defender. Why???