Questions on hard disk space

1.Why there is about 13MB in Drive C labled as "Used Space" after I have formatted it? (Meanwhile it indicates "0 byte" in Drive C.)

2. How can I re-allocate volumes between existing partitions (say, Drive C and Drive D)? Or can I take some unallocated space to an existing partition?

The Administrative Tools gives no key, and the Windows' is of no help really. So I have to turn to you guys. Thanks for any response.

O/S: Windows 2000 Pro. (English Version)
Partitions: C & D

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