My new computer has insomnia

I just got a new HP Z2 Mini G4 computer. Everything works fine so far except when I shut it down. The power light turns off and then about a minute later, it turns back on and the system restarts. I checked the network adapters and turned off "Wake on Lan". I have turned off "Fast Startup" as well. I saw no strange messages in the Event Log. The BIOS version is only one short of the latest. The latest one only referred to updates to add support for Linux BIOS tools. I am at a loss as to what may be causing it to reboot.

JohnD

Spunk,

I have Fast Startup and Hibernate shut off.


Ztruker,

I have a desktop shortcut that I use (Shutdown.exe /s). I also have Fast Startup shut off so I could use the Start Menu power button shutdown as well.

I tried the powercfg /lastwake. I ran it just before I shut it down and it gave me:
Wake History Count - 1
Wake History [0]
Wake Source Count - 0

I shut it down and after about 50 seconds it turned on again. The only thing it gave me then was:
Wake History Count - 0

To stop it I am resorting to unplugging it right after I execute shutdown. I am getting a lot of these warning errors in the logs:

"attempt to initialize before setup - empty class registry, bailing out"
Source is "NVWMI", Task Category: (16)

These occur after I start and can happen many times when the system is running. The only log message that occurs when I shut it down is "WLAN Extensibility Module has stopped" which may be ok.

JohnD

Try using a dummy account and see if it happens, too?

I tried shutdown from Safe Mode and it still does not work.

JohnD

I was on the phone with HP this morning about another issue and brought this problem up. She had me go into the BIOS and disable "Wake on LAN" there. That did the trick. Thanks for your help.

JohnD