Hi Thanks for the suggestion I will give that a try as I know he installed an SSD in a caddy in the DVD tray so it might be that.check if the hard drive is still connected completely in the slot
if yes, then the HDD is faulty
you can check the HDD in a pc to be sure
Thank you. I believe he has both mechanical and SSD drives in the laptop so it may still be the issue.Just for your info
This sound is typical for mechanical Hdds, not SSDs.