The reason is most likely the drive is getting old or defective. It may be about to break down and die. Please make sure to back up all important documents, pictures, videos, mp3s to another drive before shutting down your computer.
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I'd try something else first. It may indicate simply that the poor drive is working overtime to find things among umpteen Mb of rubbish - files are not stored in neat sequences. Turn off all open applications except the system tools (Control Panel & the file mapping). Give the disc a thorough cleaning - delete all those gash temporary internet files, browsing history, cookies, data or application files you don't need or should never have kept anyway... Then run the disc analysis and de-fragmenting software accessible via "Control Panel" (assuming MS 'Windows'). This will find out if the disc needs de-fragmenting, and to what extent. If it does, set it running and leave it to its own devices. See if that helps - it certainly won't do any harm!
The rear of a Ford Explorer may have a grinding noise when driving, because the muffler may have came loose. The u joint may also be loose and cause a grinding noise.
What would cause a grinding noise after a tire is replaced and the brakes are not worn?
If its front wheel drive possibly an axle.
The noise is the teeth on the flywheel grinding on the teeth of the starter. Check to see if the starter is loose, this is the most common cause of that noise.
If your PlayStation makes a grinding noise, it's best if you give it up for lost and purchase a new one.
A 2000 Chevrolet automobile grinding noise can be caused by several things. The most common cause of a grinding noise is worn brake pads.
It is a 2002 Honda civic
Bad wheel bearings usually cause a grinding noise, and are known to only cause it when turning.
your brake pads are probley wore out so its grinding on your rotor
Rear wheel drive: Possibly a worn universal joint on the drive shaft. Front wheel drive: possibly worn CV joints on the front drive shafts.
your barrins in the wheels
Best to get merchanical attention very soon. Never a good idea to drive a car making silly noises.