Check drive letter and partition in Windows XP
STEP 1 - Click
Start, click
Run, type
compmgmt.msc, and then click
OK.
STEP 2 - In the
console tree, click
Disk Management.
The Disk Management window appears. Your disks and volumes appear in a graphical view and list view. To customize how you view your disks and volumes in the upper and lower panes of the window, point to Top or Bottom on the View menu, and then click the view that you want to use.
NOTE: Microsoft recommends that you create a full back up of your disk contents before you make any changes to your disks or volumes.