Duplicate: Conclusively stop wake timers from waking Windows 10 desktop -- there are conclusive answers there. I searched before asking this, didn't find that question.
I've gone through about 5 posts about this issue. I'll go and fix it and then about a week later it starts up again. I'm sitting 10 feet away from the computer and it just started up again.
It's getting old. I need a list of things to check -- things that might be causing this behavior and how to stop them. I suspect that it is Windows Update helpfully resetting it's ability to wake up and check for updates.
PS C:\WINDOWS\system32> powercfg -waketimers
Timer set by [SERVICE] \Device\HarddiskVolume1\Windows\System32\svchost.exe (SystemEventsBroker) expires at 6:46:52 PM o
n 1/10/2016.
Reason: Windows will execute 'NT TASK\Microsoft\Windows\Media Center\mcupdate_scheduled' scheduled task that requested
waking the computer.