Question about Computers & Internet
First, recognize the common causes of bad sectors. Sometimes, a sector just goes physically bad. This means it just won't work anymore, and there is no way to repair it. It's common, and expected, but if you get enough the drive will become unusable and you'll need to replace it. Two other causes are simple drive instability or incorrect mapping; formating usually solves both of these .
The first thing is to run the CheckDisk utility (chkdsk from your command prompt). This will locate the bad sectors, and mark them as such. It will, if possible, move the data from the bad sectors to good ones. Then, in the future, your system just won't use the bad sectors. If the utility tells you that there were several thousand bad sectors, your hard drive should be backed up and replaced as soon as possible.
2nd thing, still doesn't solve the problem, back up your existing data and start clean by reformatting your drive. This should fix any 'cosmetic' damage.
If your drive has sustained physical damage. There is no way to repair physical damage and restore data lost as a result. The drive must be replaced.
If you hear an kind of clicking, scratching or rough whirring noises (aside from the ordinary hum of the disk) you should back up and replace the disk. These are all signals of physical crash. These can happen a few sectors at a time, or take the entire drive at once.
use this to fix those bad sectors
Posted on Mar 16, 2008
A low level format could revive the disk - download the disk utility from the disk website (e.g if it is a quantum load the disk manager from quantum site & run on the disk - follow screen instructions)
hope this helps
Posted on Mar 16, 2008
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Posted on Jan 02, 2017
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