It wakes up whenever it feels like it, and offers me no answers on why. When checking the event viewer, I see the following entry:
The system has resumed from sleep.
Sleep Time: 2010-03-27T06:09:43.164534500Z
Wake Time: 2010-03-27T10:03:03.591291200Z
Wake Source: Unknown
Well thank you VERY MUCH for giving me so much helpful information. It may as well say “because I felt like it.” In the Event viewer, it is preceded by one other entry that seems like it might be relevant:
The start type of the Background Intelligent Transfer Service service was changed from auto start to demand start.
So, I head to the command line to see what powercfg has to say and I get:
Wake History Count – 1
Wake History 
Wake Source Count – 0
There are no active wake timers in the system.
C:\Users\CplShoe>powercfg -devicequery wake_armed
HID Keyboard Device
Nothing. Not helpful at all. Why does my computer allow itself to be woken up from a source it cannot identify, based on a schedule it says it doesn’t have? Shutting off Wake timers WILL stop the behavior, but I want to be able to use wake timers.
No answers in this post, gonna keep looking. If you have any ideas what keeps waking my computer up… let me know!