No no no....
Your hard disk is not working correctly because its bigger than 137 gb,
making the
rest seem like bad sectors.
http://support.microsoft.com/default.aspx?scid=kb;en-us;303013
How to Enable 48-bit LBA Support for ATAPI Disk Drives [Q303013]
(10-18-2001)
SUMMARY
This article describes the Windows XP 48-bit Logical Block Addressing (LBA)
support for ATA Packet Interface (ATAPI) disk drives that can enable the
capacity of your hard disk to exceed the current 137 gigabyte (GB) limit.
NOTE: You must have Windows XP Service Pack 1 (SP1) for the client installed
before you enable 48-bit LBA support in Windows XP Home Edition or Windows
XP Professional. If you do not have SP1 installed, potential data loss may
occur if you enable 48-bit LBA support.
MORE INFORMATION
Windows XP includes 48-bit LBA support for ATAPI disk drives that can enable
the capacity of your hard disk to exceed the current 137 GB limit. This type
of
support is new technology and Microsoft has only tested a limited number of
these disk drives.
By default, Windows XP Home Edition and Windows XP Professional do not have
48-bit LBA support enabled.
You must meet the following requirements to use 48-bit LBA ATAPI support:
- You must have a 48-bit LBA compatible BIOS.
- You must have a hard disk that has a capacity that is greater than 137 GB.
- You must have Windows XP installed.
- For Windows XP Home Edition or Windows XP Professional, you must enable
the
support in the registry by adding or changing the registry value,
EnableBigLba, to 1 (DWORD) in the following registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Atapi\Parameters\
NOTE: If you attempt to enable the 48-bit LBA ATAPI support by editing the
preceding registry setting and you did not meet the minimum requirements,
you may observe the following behavior:
- The registry value, EnableBigLba, is disabled:
If you have a 48-bit compatible BIOS that can support a hard disk that has a
capacity that is greater than 137 GB, only the first 137 GB of the hard disk
are addressable. The remainder of the hard disk is not used.
- The registry value, EnableBigLba, is enabled, but you do not have a 48-bit
LBA compatible BIOS and the capacity of the hard disk does not exceed 137
GB:
If you enable the 48-bit LBA ATAPI support by editing the registry setting,
but you lack both a 48-bit LBA compatible BIOS and a hard disk that has a
capacity that is greater than 137 GB, you have not changed the system. The
hard disk continues to function as a standard hard disk.
- The registry value, EnableBigLba, is enabled without a 48-bit LBA
compatible
BIOS, but you have a hard disk with a capacity that is larger than 137 GB:
If you enable 48-bit ATAPI support in the registry and you have a hard disk
that has a capacity that is greater than 137 GB, but you do not have a
48-bit
LBA compatible BIOS, only the first 137 GB of the hard disk are addressable.
The remainder of the hard disk is not used.
The problem is that the drive can be seen, but when you hit that 137GB
barrier, and then exceed it, you get "wrap-around," which means that the OS
starts counting disk blocks at 0 again!