My Dell PC is about 3 years old with XP on it. Its starting to make a dull repetitive metalic sound once in a while - seems in sink while a hard drive spinning. Is the HD going out and what do I do to clone what I have to a new HD settup? I can easily take out old and put in new, but I dont want to lose my programs/data/settup - Yeah, I'm PC tech challenged. Thanks in advance for any advice/help.