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Okay so I have had my laptop for I believe more than a year now and my laptop has always had this clicking sound every now and then. It's very random though -- sometimes I'll get it but then it won't do it for months. I looked it up and saw it was a hard drive failure so I immediately backed up my files just in case but so far my laptop hasn't died yet or had any super bad symptoms...

I have looked up a lot of things about it and I have run the software diagnostics to check to see if my hard drive is faulty but they all check out okay (the software I used was from the DELL site and I believe I went to my BIOS and did a check up through that as well) so I'm confused if this is really hard drive failure or if there could be some other reason? I do think something is wrong though because when it does make the clicking noise, some functionality on my computer does not work such as the windows button... But if its not a big deal I don't want to waste my money buy a new one. Ideally this laptop should last me another 3 years hopefully.

I have a DELL Inspiron N5110 if it helps. Any advice would be most appreciative.

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You need a real hard drive diagnostic tool. Download the mhdd ISO make a CD. Scan the hard drive and report the results. – cybernard Nov 1 '13 at 4:37
@aug If you are not sure about your hard disk, make sure your backups are up to date before running any kind of diagnostic tool – Paul Nov 1 '13 at 4:38
@cybernard Any mhdd iso's you can recommend? And will do thank you so much – aug Nov 1 '13 at 4:38
@Paul yeah I make sure to back up before running them. I'll back it up again tonight :) – aug Nov 1 '13 at 4:39
up vote 1 down vote accepted

It could be signs of the hard disk failing, or it could be something else - like aggressive power management parking the heads.

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Hmmm interesting. If it were aggressive power management, would it be something I need to worry about? – aug Nov 1 '13 at 4:44
Possibly not - I mention aggressive power management because it could be the heads parking. I didn't originally Google this article, but its on point - – davidgo Nov 1 '13 at 4:59

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