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One bad sector is not a problem at all. Keep an eye on it, so check regularly. When it starts increasing dramatically in a short time the disk may fail soon. The system marks bad sectors as unusable - fixing bad sectors is impossible. However you can continue to using your disk at the current status of health.


A single bad sector may be entirely harmless and the drive may happily run with it for years. But especially if you had experienced an issue with that drive it can also be a first sign of a dying drive. As it is an external drive you presumably use for backups I would not take this lightly. You need to find out about the cause of this warning. Please do ...

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