Grrr....
We'll see how you progressed tomorrow, I'm burn out on the study thing and continuing frustration with your issue.
Try disk to wipe HDD
AOMEI Partition Assistant, Windows PE environment.
Download and make bootable media
Start AOMEI Partition Assistant,
in right Wizard section choose "Make Bootable Media"
in popup choose next, insert DVD/CE or USB, (be advised if you use USB it will delete all content of drive)
select boot device, CD/DVD or USB,
click proceed.
After creating CD/DVD or USB, insert it in non-working PC power down, power up and enter boot menu,
choose your media CD/DVD or USB.
After AOMEI loads,
Select HDD (click on most likely Disk 1 being that you only have one HDD installed)
Left pane Disk Operations choose Wipe Hard Drive,
Popup leave at 1 click OK
When completed remove media and install disk 1 of the Installation disks you created.
Power down
Power up, press F key to enter boot manager
Choose CD/DVD
Follow install instructions.
Cross fingers, eyes, legs, arms, toes, and pray.
Nite!