My Asus laptop, windows 10 does the following:
I started it up (think after a windows update which may not have finished well) and was welcomed by a completely black screen (no Asus logo, no bios access, nothing), but I hear from the power on button, HDD and fan noise that the machine is working
I tried to:
- shut the laptop off by holding down the power button up to 30 seconds, but as soon as I release the button, the laptop starts up again to the black screen
- drain the laptop of power and go at it again. Same problem
- connect an external monitor - no signal
- boot from a bootable usb drive, but as the laptop never shuts down, I cannot even access the boot menu
It is not easy to open this laptop and I lack the instruments. It is outside of warranty. If one of you has a magical solution, this would be very much appreciated
Update
After having left the computer several days without power and starting it up again, it worked. As I couldn't remove the battery without tools, I think this was the only way to shut it down completely. Thanks for all the comments