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66620
February 25th, 2010 08:00
Windows 7 Advanced Power Options Setting (Computer wakes by itself on hibernate or sleep)
Hello!,
There is a setting in advanced power options of windows 7 which is called "Allow wake up timers" and its under the "Sleep" dropdown menu. Disable both in "allow wake timers" if its enabled. Worked for me... Hope it works for you!
- Controll Pannel
- Power options
- Change plan settings(for your currently selected plan or make a custom plan then go to it again and then goto the plan and select change plan settings)
- Change advanced settings
- Go to "sleep" and expand the menu
- Go to "Allow wake timers" and expand
- Click the word "enable" then dropdown and select "Disable" on both options if not already disabled
- Click "Apply" then Click "OK"
- Click "Cancel" on next window then exit all windows
- Reboot
Hope this helps!
Can someone please if you have time post this to other forums of your choice in regards to this.
Thanks
DELL-Jesse L
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February 26th, 2010 09:00
Buck Paradis,
Thanks you for posting helpful information here in the forum.
ardrawson
4 Posts
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February 27th, 2010 13:00
Thank you, this article is really helpful in stopping the bad behaviour of my laptop, i.e. waking up continually.
However, I am still a little frustrated because I want to be able to track and control WHAT is waking it up. I'd like to be able to leave wake timers enabled so that some applications (e.g. defrag, backup, virus scan) could be run overnight. I've tried and tried to figure out what is waking my laptop up, looking at the scheduler, at log files at the task manager, but I can't figure it out.
Does anyone know how you can discover what the trigger for waking was?
Thanks,
Drew
Buck Paradis
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March 1st, 2010 05:00
i found the wake up event (power management) in my "windows manager" "event logs"
- right click my computer
- select manage
- list on left
- event viewer
and look in there for the wakeup event.. if its in the morning it should be close to or the first event of that day
hope this helps!!
ardrawson
4 Posts
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March 1st, 2010 13:00
Brilliant! Thank you BP
That's done the trick. I did as you suggested and found the Event Viewer. From here I drilled down to "Windows Logs" and "System".
In the list of log entries there is an information-level entry with a source of "Power-Troubleshooter" which logs that the system has resumed from sleep.
In the details of this event there is a "WakeSourceText" field and for me that said...
Windows will execute '\Microsoft\Windows\Defrag\ScheduledDefrag' scheduled task that requested waking the computer
So it turned out the scheduled defrag was being a little over-zealous and if it missed it's Saturday at 0200 appointment it would try and try again, but not succeed (so it wasn't showing in the schedule history).
Hey, presto, problem solved. Thanks again