The hard drive is a component that will act as storage for your device. This guide will go over how to remove and replace the hard drive for the P-6831FX.
Turn your laptop upside down and remove the four Philips #0 (5mm) screws for the cover of the hard drive.
Gently pull the cover away from the device.
Set the cover aside for now, until reassembly.
Pull the plastic tab as shown to remove the hard drive from the device.
Remove the four Philips #0 (3mm) screws around the case for the hard drive. There will be two screws and the left and right side.
Remove the hard drive from the case.