I am turning my Windows 8 box into hibernate for night. But at morning I am finding it wake up. I know I can use trial and error method to find what is turning it on. But is there any registry, which remembers wake up signal, which woke up a computer this time?
1 Answer
You can open a command prompt and run powercfg -lastwake
.
You can do this in a batch file like this:
lastwake.bat (put it on your desktop for easy access)
powercfg -lastwake
pause
At the Wake Source
it should state your wake-up source.
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I didn't know you about this command. I just tried it out and it works well. For anyone who gets
Wake History Count - 0
as the output of this command, it's because your computer hasn't woken up from sleep yet (e.g. reboot, powered up after a shutdown, etc.)– VinayakJun 7, 2014 at 12:23
powercfg -waketimers