用 HDD Regenerator Shell

掃描到最後他就停住了..我去看看他的HDDREG.LOG
顯示..
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Sector 20927 was damaged but wasn't recovered

8404830 sectors scaned. 1 found bad. 0 recovered.
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請問我該怎麼屏蔽掉壞掉的部份呢??