Control Panel -> Administrative Tools -> Computer Mng
Select "Disk Management"
Right-click the new disk -> click Initalize.
You will want to create an extended patition -
then logical partitions.
Click on help in tool bar -> click on index tab -> type in "BASIC DISK" -> click on display. This will do a better job than I can to explian Partitions.
I've added a second hard drive to my system (Seagate 200 GB, WIndows XP Pro). It's being recognized in the device manager, but does not show up with an associated drive letter in My Computer. I assume it must be formatted, but I only know how to do this given the drive's letter. WHat is the next step to take in installing this hard drive?