Was performing a cleanup on a HP laptop, I was in the BIOS turned off Secure boot mode and can longer boot into anything. I was attempting to boot to internal CD to run memtest but it wouldn't boot I cant boot from any cd at all ....
I can hear the fan on boot and see that a backlight is on screen but nothing happening. Black screen, no cursor, googling led me to pulling battery out holding down power for 15 secs but to no avail no safemode no bios.... please help!!!
thanks in advance.