Why not change the setting in the registry as this is where they are kept, the following registry key is where the folder names are located, obviously yours will say whatever it is currently named, all you have to do is rename it :-

NOTE:- Messing with the registry can screw your PC up, make certain you back the registry up before modifying any entry and obtain the knowledge to know what your doing, I will not be responsible for anything you do to your pc or another persons,

If in doubt back it up.... if the information or image is that valuable it should not be on a computer !!