To assist you further I would like to know, did you try to run diagnostics from F12 option.
What happens when you power on the system with Fn + power button?
Did you check in BIOS if hard drive is detected or not.
Please check in BIOS if the hard drive is detected, to check in BIOS follow the below mentioned steps:
Now please reboot the system and check. If the system is not booting normally then run custom test on the hard drive. To run custom test please follow the below mentioned steps:
Please reply with results.
Ok when I do F12 all I get is the boot menu saying under uefi boot- removable drive, network boot. Under other options it's telling me to change boot mode settings which is all I can do. Nothing else works at this point. F2 isn't showing a menu for me at all. Fn+power seems to like warm but nothing really happens. Only thing I can do is change Boot mode to either legacy boot mode (off) or uefi boot mode (off), been though it is on uefi boot at the moment.
I would like you to follow the steps in the above post to enter boot menu and change the Boot options to Legacy, save the changes and restart the system. Check if that helps.
As this situation requires more research, for me to also understand the system specifications, please private message the system service tag, contact number and registered owner’s name.
To private message, click my user name and click “Start conversation”.
Awaiting your response!