Norton Ghost 15 - Windows 7 restore question

I recently bought a new computer running Windows 7 Professional SP1 (64 bit) and utilized the Recovery Disk to obtain a cold image backup.

 

I note that Windows 7 creates a separate partition/volume with no volume letter, referred to as System Reserved.

 

MY research says this holds Boot Manager code and the Boot Configuration Database.  It also reserves space for the BitLocker Drive Encryption feature.

 

I backed this up as well as my OS drive C:\. 

Ghost backs these up as 2 separate volumes as expected. 

 

So if I ever had to restore my OS drive C:\ , do both volumes need to be restored or just the OS C:\ drive? 

What if I was restoring to a new hard drive?

 

If need to restore both volumes, which one is restored as the active drive?

 

In essence, does the System Reserved volume ever change as programs are added or deleted, or changes are made to Windows via updates or options selections?