My hard disk having bad sectors how to block them?

my hard disk have bad sectors , ofter formating the drive , when installing xp some files are not copying , i am not able to install operating system, I want to block bad sectors on my hard disk , I tried through disk wizard c.d but there is no use, there is any chance to block bad sectors through DISK MANAGER, if... show more my hard disk have bad sectors , ofter formating the drive , when installing xp some files are not copying , i am not able to install operating system, I want to block bad sectors on my hard disk , I tried through disk wizard c.d but there is no use, there is any chance to block bad sectors through DISK MANAGER, if any chance tell me how to do ?. plz
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