Laptop with Windows 7 turns on spontaneously while being in "Sleep" state

Question

I own a laptop(HP Pavilion DV7) with Windows 7 installed for already half a year.
Usually when I finish my work I do not turn machine off - closing is enough to get is into "Sleep" state.

Generally it's okay for me, but recent several days laptop was turning on in night spontaneously, while I was sleeping.

• I haven't installed any app with "turn-on by schedule on when_dooes_pc_wants"-like features.
• Checked if there are some "Wake-On-Lan"-like settings in BIOS, haven't found ones.
• The power-cable is always plugged-in.

Does someone have any suggestions regarding that?

p.s. laptop is placed right near by bed, so when it turns-on on night - it is quite annoying and a bit scary. I think it's trolling me, please help to stop it :)

Thanks.

Solution

Check device drivers in Device Manager, see if any are set to "allow this device to wake computer", disable them.

Comments

[Daniel R Hicks]

Alas, this is semi-normal for Windoze. Though I haven't seen it as much with 7 as with Vista.

[alexb]

Found that "Allow device to wake the computer" flag was enabled for mouse; Probably it's sensitive enough to react on environment events(nearby subway, human steps, etc). Switched flag-off, think that helped. Thanks a lot!

[Synetech]

Hmmm, I don’t think this is the cause for mine (I’m fairly sure I already checked everything), but it certainly would explain why it turns on at random times. I’ll check it tomorrow to be certain. @alexb, thanks for specifying which device it was that caused it for you.

[neubert]

My computer has a whole lot of devices attached to it. I don't suppose there's a way to just auto magically get a list of all devices that have that checkbox checked?

[Ben Voigt]

@neubert: powercfg.exe /devicequery wake_armed at an Administrator command prompt. powercfg.exe /lastwake is also useful