fix bad sector

[sepid]

hi
i have a h.d.d wd 1tb
this h.d.d more 20000 bad sector
how i can fix bad sector ?
please full ansewer
thanks

[digitalsupport]

For the full answer, you also need to ask the full question.
What is your goal, data recovery or drive repair?
What is the story of the drive, what model, are all the bads on one head or in a specific range?

[sepid]

hi digitalsupport
this is h.d.d WD 1 tb 2.5inche familly FBlite
no data recovery
h.d.d repair
and no bad head
only bad sector logical
thanks