On booting the laptop warns me about failure of hard disk is imminent…can it be repaired or to be replaced..

hard drive

when I am booting my laptop (Lenovo G550) it gives an error message prior to that..
SMART Failure Predicted on Hard Disk O:Hitachi HTS543225l9A300-(PM)
Warning : Immediately back up your data and replace your hard disk drive.
Afailure may be imminent.
Press F1 to continue..

Once it started, it runs smoothly, I also verified its status by running some internal HDD tests by Hard Disk Senitel software..It shows no bad sector , no virus, no damage , normal temperature … it suggests every thing is OK except its health…

Now my question is that then what is the wrong with it..?
It may be wrong with plates (dusty) or the read/write heads…then can I go for repair it or replace it…?

My system now reminds me every half an hour to resolve this problem since last 10 days…

Help me.

Best Answer

SMART is notorious for not catching hard disk failures ahead of time; you've gotten lucky. If HDS isn't reporting a problem, well, I wouldn't trust it. If SMART values have gotten so bad the BIOS is nagging you about it, that drive is about to crash and burn.

Repairing a hard drive yourself is pretty much impossible. Merely opening the drive would unavoidably expose the internals to dust particles that will destroy the heads and platters in short order. Replacement is the only option -- and on most laptops, replacing the hard drive is rather easy. Usually they're tucked beneath an access panel dedicated to the purpose, that comes out with a screw or two. Keep in mind you'll have to then install your OS and programs onto the new hard drive, and migrate your data over from your backup.

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