@mluleki sounds like either an issue with the BIOS settings or the Firmware can't boot into the OS. Try and check your BIOS. See if your BIOS still sees your storage drive on which your OS is loaded. You can also try to reset the BIOS. If the BIOS does not see your drive, try to change the boot order to USB and use a bootable USB drive to check if that changes anything.
To get into the BIOS, power up your computer while pressing and holding the F2 key. Let us know what you find out.