How do I fix a bad sector on my hard drive?

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Use HDD Regenerator to recover bad sectors on your drive. This will allow you to recover or backup your data...I wouldn't trust the drive after that. Once a drive starts to fail there is no turning back...
There is a disc on the net called HIREN BOOT CD .. some of the best tools you will find anywhere.. get it !!

i have found some bad sectors in my hard disk. my c: drive is ok but there is a problem in d:. when i run scan disk the checking was stopped at 21% in drive.would i have to change the harddisk.or it can be repair.if it will repair what will be the process.i have a segate hard disk of hcl branded PC.

Repairing it usually isn't worth the money, even if you can find someone to do it (I wouldn't know who). Drives are so cheap these days that replacement is typically the way to go.

I would consider purchasing SpinRite as mentioned in the article - it does perhaps the deepest analysis and recovery that I know of. If that failes, I'd replace the drive.

I heard that there is an application that can regenerate bad sectors, applying a magnetic charge on the sector to "recharge" them, is this true? where do i find it?

The closest "application" I'm aware of is SpinRite, as mentioned in the article. It does extensive work to attempt to recover, and then repair, bad sectors. Obviously it can't get them all, but if it can't I believe your next step is a repair shop or data recovery service.

MAXTOR brand Hard Drives are without a doubt the most horrible hard drives out! You are very lucky if they last more than a year nowadays! DONT BUY MAXTOR and your bad sector blues will not happen as much. Seagate Hard Drives however are the SH!T!

I recomend seagate over any other brand but WD & samsung isnt too bad either...

FWIW that doesn't match my experience at all. I've had several Maxtor drives (I particularly like the external usb/firewire drives) and they've all done as well as any other drive.

Try to use HDD regenerator, it works in harddisk!!!

I finished a fresh format (winxp sp2). It worked properly for 2 days....but since this time my computer didn't boot because of a system file missing....pease give me the reasons that cause this problem!!!!!!!!!!!!

There's so little information there, it could be many things. Are you following all the recommendations here: http://ask-leo.com/how_do_i_keep_my_computer_safe_on_the_internet.html

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