Windows – Automatic WakeUp from Hibernation on Windows 7

automatic-logonhibernatepowerwindows 7

I scheduled a task in Windows 7 to play music at a particular time of the day. The scheduler allows a setting that makes the laptop power up from Sleep/Hibernation mode automagically. I guess that would be some setting that windows does on the BIOS.

Now there is a setting that allows me to specify that even if the PC is on battery power run the task. Also in my power settings I have enabled Allow Wakeup Events when running on battery.

But somehow the PC is not powered on automagically when the AC power is not connected. It does resume from hibernation when on charging. The battery is new so that should not be a problem.

Why is the PC not able to resume itself from hibernation when not connected to a power source?

Best Answer

Waking from hibernation in Windows 7 apparently does not work too well when on battery.

Have a look at the freeware WakeupOnStandBy, which supposedly answers your needs, and might work better than the Windows scheduler.

If your computer has any power-configuration problems that impact on sleep/hibernate, Windows 7 has a utility to analyze such problems. See the article below on how to use the utility, and add the problems it finds to your post (or even better just upload the entire report somewhere and add the link to your post):
Evaluate System Energy Usage and Get Power Management Report with PowerCfg -Energy Switch in Windows 7.

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