More of a heads up on this.
If you have a laptop running windows 10 you may find it waking from sleep or hibernation & staying awake until you next open the lid as has happened twice to me. I am running fresh installs then formatted and reinstalled again 2 days ago to rule out anything else. It was on again this morning due to windows 10 having "allow important wake timers" as a new option in power options for windows update.
I found this in my event viewer.
Code:
Wake Source: Unknown, but possibly due to timer - Windows will execute 'NT TASK\Microsoft\Windows\UpdateOrchestrator\Reboot' scheduled task that requested waking the computer.
Then a google took me here http://www.howtogeek.com/122954/how-...-accidentally/
Worth disabling this on laptops, and main PC's if you do not want it to wake up for no real good reason.