XP not detecting my seagate HD

[Abyssa]

I have a 200 gig maxtor as my main hard drive. I bought a used seagate for my sister's computer its an 8.4 gig. To test it I slaved it with my Maxtor. Bios is seeing the Seagate so is device manager yet when I go to windows explorer the seagate is not on there so I can't format it.
I don't want to put it in my sister's machine till I format it. Why isn't xp seeing it? :confused:
Any advice?
thanks

[Gizmo]

You need to partition and format it in Disk Management first.

[Cricket]

Also, what operating system is your sister's computer using? If Win9x (Win95, Win98 or WinME) be sure you format the Seagate with FAT32 and not NTFS...Win9x can't see NTFS partitions.

:) Cricket

[Abyssa]

You need to partition and format it in Disk Management first.
How do I get to disk management?

[Cricket]

Start > Control Panel > Performance and Maintenance > Administrative Tools. Double click Computer Management and then click Disk Management in the left hand column.

:) Cricket

[Abyssa]

Thanks very much.
I been there before but I forgot it. :o