How can I edit boot screen image label windows

Not sure where to ask this as no real area for it ?

I have just clone my main HDD and bootcamp windows Vista , and put old drive in the Optical Bay , renamed the Partitions .

Now I have

Mac 1tb

Mac 500GB

Windows

Windows

Recovery 10.8

I want to rename one or Both of the Windows image labels in the boot screen ?

I have tried in Mac side , manually and in disk Utility

Tried in windows side in right click and then change name ,

But nothing seems to change the Name in the Boot image .

If I cannot change the name is there a way to unmount the image in the optical drive and stays uncounted when I restart to get to windows ?

Cheers mark