Hard Disk Drive not found in ASUS UEFI BIOS Utility - EZ Mode

Hi there,
My sister just bought a new desktop. It was working fine and all. But this morning, she forced shut down a windows update. The next thing happen once it gets past through BIOS is
"Reboot and select proper boot device or insert boot media in selected boot device and press a key"
So I told her to look at the BIOS setting and it only recognise the Optical Disc Drive of
"SATA SM: TSSTcorp CDDVD SH-2"
as shown in the picture below

Is there anything I can do? I tried opening the desktop case and see everything is loose, but everything was still in tact.
Any suggestion would be much appreciated.
Thanks in advance.

Try reinstalling the driver, changing cables. If it can't be recognized then boot the maker's diagnostics DOS CD scan to test it - Seatools if there isn't one - or Partition Wizard bootable CD surface scan. If these won't see it you can slave it to another PC to try Disk Check or see if it will see it. If not then I'd replace it.

Do a Clean Reinstall on the replacement drive from tutorial in my signature below if you want it perfect.