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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?
Dims
Posted 2014-06-07T07:17:09.117
Reputation: 8 464
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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.
Rik
Posted 2014-06-07T07:17:09.117
Reputation: 11 800
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.) – Vinayak – 2014-06-07T12:23:58.080
This question provides some tips: How do I prevent Windows 7 laptop from waking up automatically?
– and31415 – 2014-06-07T10:23:52.637You might also want to disable wake timers to prevent scheduled tasks from waking up your computer. To see if you have any wake timers enabled on your system, use the command
– Vinayak – 2014-06-07T12:27:31.163powercfg -waketimers