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 
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?