Greetings, I just replaced two small internal hard drives with one WD Corvair 500GB hard drive. After the installation of the hard drive and WinXP I noticed that in Device Manager WinXP is showing a partition of 127GB and a unassigned 337GB. I don't understand this because it was not my intention to make a partition. When I go to My Computer and right click on the C drive WinXP is showing that I have used 8.23GB and that only 119GB is free. In the BIOS its showing that the new hard drive has a capacity of 500111MB. Am I correct in thinking that the BIOS is identifying the correct capacity of the new drive and that somehow I partitioned the drive during setup? An after thought is that partitioning the drive is a good idea but why is it that when I right click in My Computer to see the Properities of the drive I am only seeing that the drive has a capacity of 127GB???