You didn't give the specifics about your PC but if you want to troubleshoot further and it's a desktop you could open the case and place your fingers on the hard drive after boot up. If the hard drive is mechanically running you should be able to feel a slight humming vibration. You should also check that the data and power cables and connectors are securely attached and not damaged. You can also boot into BIOS/UEFI to see if the hard drive is being detected. You could also try a different SATA connector to rule out a bad connector.
If still no luck. Replace the hard drive and use Recovery Disks to re-install Windows.