How do we rename the drive letters for our drives, or resize them without data loss?

Can you answer hameerabbasi’s question about Data Recovery?:

Ever since I added another hard disk to my PC, and removed it, my drives are lettered C:, H:, I: and J:. I want to rename them to C:, D:, E: and F: without data loss, and resize them. Can someone recommend a freeware program for this purpose?
Okay hello? Freeware program that does this!? And I tried the method mentioned in the first answer, can’t do it. Just can’t take it behind F:

Ntfs File Recovery Software

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