Quote:
Originally Posted by Welshchris
drive has bad clusters and wanna see if it will mark them as unusable as my sister doesnt wish to replace the drive now as my neice is having a new laptop for christmas.
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Low-level format will break the mechanism used for that so I wouldn't suggest it.
Spinrite or MHDD as DaiNasty said. You want to do a surface scan & wipe not a low level format.