On my son's Windows 10 Pro laptop, an HP Probook 4540s that was upgraded from a previous Windows version, it will not shutdown...
The laptop starts the shutdown process with the spinning windows thingy, then the screen goes black but the power light stays on and the hard drive light flickers occasionally except it never powers down, then after about 1.5-2 minutes the desktop just pops back up (not like the computer was restarted, just pops back up) but it didn't reboot.
The strange part is selecting Restart has very normal behavior, the Windows Restart screen with the spinning windows thingy pops up for about 15-20 seconds, then it shuts down and the BIOS screen pops up and it reboots normally.
So on a restart the laptop is doing the shutdown process normally and restarting, but on an actual shutdown it is not getting to that point (no BIOS screen) and the desktop just reappears after a couple minutes.
I have tried updating and downgrading the Intel Management Engine Interface like several online help forums mentioned, but it didn't change anything.
My son is getting very frustrated since he has to hold the power button to get it to shutdown, which he knows can cause issues.
Any ideas on how to fix this?