The interesting question that i am left with is what is calling the wake up timer (activeringstimer).
Where does windows keep its logs?
I've gone into task scheduler but it only shows a history per task and appears to lack a listing of the activated task history or a proper search function.
I noticed the windows media center icon flash in my taskbar for a sec after the pc came out of hibernation but i'm pretty sure i never set it up. I tend to stay away from windows media player because of my really bad experience with wmp 8 through to 11. My other suspect is the sidebar. Maybe unrelated but it has just crashed after disabling the wake-up timer.