Solved! Laptops don't seem to shut down.

[CrowMagnuS]

I have an HP Zbook and HP Envy, all Windows 10 pro.

When I shut down, either by start menu or power button, the wifi and mute buttons stay illuminated and fans run full blast.
-Updated MEI after trying the older versions 9.5 to 10
-Set up power options to shut down
-tried the shut down option in CMD.exe to force it

If I pull the battery out, it immediately boots upon inserting the battery back in... I'm at a loss.

 

[webworkings]

When you take the battery out, make sure the charger cord is disconnected, leave the battery out for a few minutes. While it is powerless (no battery or charger) press and hold the power button for about 30 seconds (if not a little longer). Then after a few minutes has passed, put the battery back in and see if it stays shut down.

 

[CrowMagnuS]

When you take the battery out, make sure the charger cord is disconnected, leave the battery out for a few minutes. While it is powerless (no battery or charger) press and hold the power button for about 30 seconds (if not a little longer). Then after a few minutes has passed, put the battery back in and see if it stays shut down.

I left the battery out for 10 minutes and held the power button for 2 minutes. Placed the battery in and it immediately started to boot... I'm lost.

 

[webworkings]

I am wondering then if the power button is actually stuck. Even if you don't see it on the outside, it can be stuck internally.