Change drive letter

Hi guys and Amalux,

I using LiveXP-Rec (LX.041412) which able to from USB_Boot. But i would like to know, can i change the drive letter for the USB_Boot before it loading into windows.

Here is the example:

I'm having 2 partition on my HDD : C and D Drive, when i boot from USB_Boot

inside my computer it showing

C: HDD primary partition
D: USB_Boot
E: HDD extended partition


Here is the Question:
Can I change it to below setting before it finish loading into windows?

C: HDD primary partition
D: HDD extended partition
E: USB_Boot