I was searching something & found something useful & want to share it with you all..

We can change windows explorer behaviour –>how it handles permissions when files or folders are moved.

If you want to preserve the permissions when you copy or move files/folders to different volume

1. Click Start, click Run, type regedit in the Openbox, and then press ENTER., just do the below registry tweak:
2. Locate and then click the following registry key:
   HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer
3. On the Edit menu, click Add Value, and then add the following registry value:
   Value name: ForceCopyAclwithFile
   Data type: DWORD
   Value data: 1
4. Exit Registry Editor.

for complete article follow the below link:

http://support.microsoft.com/kb/310316