Good Morning Ashleigh,
That Hard Drive diagnostic report
does not show anything untoward with your Hard Drive,...this is indeed Good News!
I need you to explain a little more about this 'grating' at the start up....
Is the 'grating' only a momentary sound while there are 'black' screens 'flashing' just before the Windows® Splash Screen appears, or is it a continual noise while the computer is operating?
Please clarify this point.
Kind Regards,
__________________
Dave T.
If it works, Don't fix it!
Especially if Bill Gates had anything to do with it!!