My Windows 7 PC wakes up randomly and powercfg lastwake shows nothing. What to do? [duplicate]

Possible Duplicate:
Laptop randomly waking up = Hibernate / Low Battery?

My PC wakes up from sleep randomly.

I disabled Hibernation after Sleep.

I am using Asus N53SV with Windows 7 64 bit.

Power Options > Sleep > Allow wake timers are disabled.

It doesn't wake up from Hibernation.

My searches yielded "Look for powercfg lastwake", "Disable wake timers" but they didn't help me.

powercfg lastwake shows this:

Wake History Count - 1

Wake History [0]

Wake Source Count - 0

PowerCfg -DEVICEQUERY wake_armed shows this:

HID Keyboard Device (001)

Which is normal since keyboard should wake up when pressed. The PC wakes up even when the lid is closed, so keyboard is not pressed.

powercfg -energy shows

System Availability Requests:System Required Request

The device or driver has made a request to prevent the system from automatically entering sleep.

Requesting Driver Instance HDAUDIO\FUNC_01&VEN_10EC&DEV_0269&SUBSYS_10431063&REV_1001\4&cc8e931&0&0001

Requesting Driver Device Realtek High Definition Audio

I'm using the latest Realtek driver

So what should I try next?

Solution 1:

The same thing happened to me yesterday. I checked online for a solution and found mention of applying the Visual Studio 2010 update KB2764593 being a solution, but I don’t have VS2010 installed.

I eventually figured out that the problem was caused by a failure of my Intel network adapter. Please check the Windows Update.