I recently installed a WD 2tb hard drive ( WD20EARX) and Windows (XP x64) will not recognize it even with disk management. It shows up in the bios and can be formatted with various bootable programs. I decided to see what would happen if I installed windows onto the new drive and to my surprise it installed just fine and all my other drives show up in that installation. If anyone has an idea as to how I can get the new drive to show up in my main windows installation it would be greatly appreciated.