virtualbox.org

Hi :-
i have this virtual windows vista pc which i installed inside sun virtualbox (version 3.1.2 r56127)
and when i go to my computer i find only Local Disk(C:)
i need to create another virtual local disk [ for example :- Local Disk(D:) ] 70GB (virtual 70GB)
how can i do this ?
i tried adding another hard to this virtual pc but when i go to my computer i do not find it there as local disk !!!!!.?
thank you .

It's just like a real PC. Go into the Windows vista disk manager and initialize it.

could you please explain step by step how to do it , In details ?
because i do not know how to do it .

Goodness. Google is your friend.

http://windows.microsoft.com/en-US/wind ... disk-drive