if you have critical data then, change to new disk is the best option
for less critical then i believe eepc should been removed..
because if SBFS fall on BAD sector your EEPC will not working and you need to decrypt afterall..
imho: Bad sector like virus with no cure so if you found any then time to change new disk, disk is cheaper than risk your data on it.
what if OS is already crashed ? is there any way to recover ?
You do the same as with normal crashed disk. Transfer what you can (raw disk sectors) to good disk, decrypt and salvage data.
its giving CRC error while copying data from Wintech
What WinTech? For raw disk sectors transfer from bad disk to good disk you do NOT use WinTech.
Do that part with other tools.
that is what now i m doing ,,, I trying to make ghost of this bad hdd.. I hope ghost will not through error..
Use option CRCIGNORE