Need geek help for HD issue, please.

Okay, so I got my HD enclosure, got the thing installed and working. I had totally forgotten, but there was an additional issue I came across when I first bought the HD a couple years ago..

I have a WD Caviar [model WD1600JBRTL], 160 GB, 7200 RPM, 8MB cache. I’m running XP SP2. Basically, the issue is that the full storage capacity of my HD is not available. I know there are system limitations, but I would like to get around them to have all 160 gigs.

Here’s the problem.. I followed the directions here. My Atapi.sys version is new enough. I went to use regedit to do the next step:

“For the original release version of Windows XP Home Edition or of Windows XP Professional, you can enable 48-bit LBA for testing purposes. To do this, set the EnableBigLba registry value to 1 in the following registry subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Atapi\Parameters_”

Only problem is there isn’t an “EnableBigLba” registry value in that registry subkey. Uh.. what do I do??

Thanks. :)