How to move Windows Vista (64b) Boot Manager to another drive

I scratched my "old" Vista install and installed Windows Vista 64x on a new HDD now called C:\
When viewing the BCD settings with Vista Boot Pro, I get the code below.

As you can see, the "Windows Boot Manager" the "Windows Memory Tester" and the "Windows Legacy OS Loader" are pointing to the E:\; which is the "old" drive on which Vista 32b was installed.

I want to wipe this old drive and use it for backup purposes.
Of course I can't use it with the Windows built-in backup tool as it's seen as a system drive.

Anyway, I don't find it very clean to have the boot manager on a another drive and I'd like to move everything from E:\ to C:\.

Does anyone knows how to definitively move the Windows Boot Manager (different to "boot loader") to another drive?

Thanks in advance

Windows Boot Manager
--------------------
identifier              {bootmgr}
device                  partition=E:
description             Windows Boot Manager
locale                  en-US
inherit                 {globalsettings}
default                 {current}
resumeobject            {288fb4e6-0fb1-11de-a74b-90f9a4e86484}
displayorder            {current}
toolsdisplayorder       {memdiag}
timeout                 30
 
Windows Boot Loader
-------------------
identifier              {current}
device                  partition=C:
path                    \Windows\system32\winload.exe
description             Microsoft Windows Vista
locale                  en-US
inherit                 {bootloadersettings}
osdevice                partition=C:
systemroot              \Windows
resumeobject            {288fb4e6-0fb1-11de-a74b-90f9a4e86484}
nx                      OptOut
 
Resume from Hibernate
---------------------
identifier              {288fb4e6-0fb1-11de-a74b-90f9a4e86484}
device                  partition=C:
path                    \Windows\system32\winresume.exe
description             Windows Resume Application
locale                  en-US
inherit                 {resumeloadersettings}
filedevice              partition=C:
filepath                \hiberfil.sys
debugoptionenabled      No
 
Windows Memory Tester
---------------------
identifier              {memdiag}
device                  partition=E:
path                    \boot\memtest.exe
description             Windows Memory Diagnostic
locale                  en-US
inherit                 {globalsettings}
badmemoryaccess         Yes
 
Windows Legacy OS Loader
------------------------
identifier              {ntldr}
device                  partition=E:
path                    \ntldr
description             Earlier Version of Windows
 
EMS Settings
------------
identifier              {emssettings}
bootems                 Yes
 
Debugger Settings
-----------------
identifier              {dbgsettings}
debugtype               Serial
debugport               1
baudrate                115200
 
RAM Defects
-----------
identifier              {badmemory}
 
Global Settings
---------------
identifier              {globalsettings}
inherit                 {dbgsettings}
                        {emssettings}
                        {badmemory}
 
Boot Loader Settings
--------------------
identifier              {bootloadersettings}
inherit                 {globalsettings}
 
Resume Loader Settings
----------------------
identifier              {resumeloadersettings}
inherit                 {globalsettings}

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