I cannot get my laptop computer to turn off except by disconnecting the battery and unplugging it. It won't shut down with the windows shut down button either. Any ideas on what the problem could be?
More aboutwont computer turn power button
What happens when you try and shut it down with Windows? If it tends to reboot, you might get lucky and it's just a stuck power button. A relatively cheap fix compared to the other possibility of it being a defect in the motherboard.
This might be the power button option in BIOS that make it work that way. When it is set this way you have to hold the button for over 4 seconds.
Change it in BIOS so the power button wil shutdown the PC and not Hibernate it.