How come my hard drive in XP or Windows 2000 only shows up as 137 GB when it is actually >137GB?
Ans: If the BIOS is upto date, it should support 48-bit hard drive access. Windows however does not support this by default. Update to the latest service pack and add this key to the registry – To enable 48-bit LBA large-disk support in the registry: 1. Start Registry Editor (Regedt32.exe). 2. Locate and then click the following key in the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Atapi\Parameters 3. On the Edit menu, click Add Value, and then add the following registry value: Value name: EnableBigLba Data type: REG_DWORD Value data: 0x1 4. Quit Registry Editor.