Boot Menu Iba Ge Slot

I went to turn on my laptop (it used to be my dad's work laptop) and it is encountering problems try to boot up.
The very first screen that I encounter when trying to boot my laptop says:
'ERROR
2100: HDD0 (Hard Disk Drive) initialization error (2)
Press <Esc> to continue'
When i press escape, it leads to
'Intel(R) Boot Agent GE v1.2.50. Copyright (c) 1997-2007, Intel corporation.
Intel(R) Boot Agent PXE Base Code (PXE-2.1 build 086)
Copyright © 1997-2007, Intel Corporation”
and 'Initializing and establishing link ...'.
And then after a minute or so: 'PXE-061: Media test failure.' and 'PXE-M0F: Exiting Intel Boot Agent.'
It then takes me to a screen that says:
“
As of right now, the 'current boot order and device status' is:
1. USB FDD -> Device not found
2. ATAPI CD0: ModelMATSHITADVD-RAM UJ-842-(PM) -> No valid operating system
3. USB CD: -> Device not found
4. ATA HDD0:
5. PCI LAN: Model IBA GE Slot 0200 v1250 ->No valid operating system
6. -USB HDD -> Device not found
7. ATA HDD1: -> Device not found
Excluded from boot order:
: ATA HDD2:
: ATAPI CD1:
”
I here that this problem probably arose from it trying to boot from a network drive and that I should change my boot priority order?
Does anyone have any idea what I the problem is and how I can fix it? Thanks so much for the help.