Order of drives

Hi,

My laptop came with one harddisk and a DVD drive. These were initially C and D drives.

I later used a partition software and made 3 partitions out of my single harddisk. I meant to have these as C:\ (original drive), D:\, and E:\ Drives. I wanted the DVD drive to become the F:\ drive…

However after booting I have the drives in the following order:

C:\
D:\ DVD drive
E:\ (what I wanted/meant to be the D drive)
F:\ (what I wanted/meant to be the E drive)

How can I change the oder/visible sequence of drives as per my requirements? Will be grateful for your help.