Encrypted Profile Migration from XP to Windows 7 (Windows & Program Files Folder not Available)

I'm trying to migrate a few encrypted profiles from Windows XP to Windows 7 
I have a disk without "Windows" and "Program Files" Folder with the userprofiles without a backup of recovery agent and related certificates. 
By USMT or in another way it is possible a deployment and recovery (also partial) of these userprofiles folders? These data can be accessible in some way or there are lost forevar? 
During USMT deployment by scanstate/loadstate cmdline tools: I used to be specify a KeyString
after the switch command "/encrypt /efs:". I can blank "/efs:" argument during USMT Deployment? 
Thank you.

Sadly, without a backup of encrypted userprofiles, related data are unusable after scanstate phase.
Anyway, what
 Hetti
Arachchige V Aravinda had written is very important to know when you copy or move ecrypted folder and files in a different partition or in a another disk.
Thanks Hetti
Arachchige V Aravinda for your good info and tips. 

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