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Bad sectors are a run-of-the-mill fate of all insoluble drives.

 Eventually, all drives prosper areas that are no longer functional and when this happens, they are isolated by the operating system. Bad sectors are precise much not unlike bumps monopoly the road, areas which are avoided by the interpret / commit head and which are no longer accessible to the user. If aim critical data exists on the drive, we advocate to backup as any more because possible, in that the formation of bad sectors repeatedly indicates the impending casualty of the drive. Finally, and most importantly, discharge NOT unbefitting ration event scamper the ScanDisk or Chckdisk utilities when data becomes inaccessible. These utilities are designed to fix peerless file system errors and not constituent other types of errors, ergo if your tough drive has suffered from bad sectors, these utilities solo generate things worse.