Random nightly wake-ups, even after doing the "usual" fixes.

Every night I turn my computer off using the shut down function, and most mornings I wake up to find it is on. I have tried to fix this by finding out what programs are turning it on in command prompt. When I type,

powercfg -lastwake

I get:

Wake History Count - 1
Wake History [0]
Wake Source Count - 0

Also:

powercfg -devicequery wake_armed

returns:

NONE

Which is concerning to me. I have gone to various settings and disabled "Allow to wake" checkboxes for my mouse, keyboard, network controller, and everything else I can think of. I even looked through most of the Task Scheduler tasks and found that none of them were allowed to wake the computer. I am at a lost as to how this is still happening...

Help is appreciated.

Have you turned off automatic maintenance? Control Panel >> Security and Maintenance >> Maintenance >> Change Maintenance Settings >> Uncheck Allow scheduled maintenance ...

I had not looked at these settings before, but when I did just now I found that scheduled maintenance was set for 2 AM (which I changed to 6PM) and that the "Allow scheduled maintenance to wake the computer at the scheduled time" box was already unchecked. I didn't find an option to "turn off scheduled maintenance".