Changing Name in "Documents/Settings"

New machine and new to XP - have noticed that the supplier of new m/c
has used our very distinctive surname to name the system folder under
Documents and Settings when installing XP Home.

Can we change this as it seems to be appearing in a lot of situations
- is it possible that this might be transmitted out onto the internet
via emails etc. or web surfing - will we get "personally addressed"
spam as a result?

Tried "rename" but of course it says it cannot be done as it is a
System folder"

Any advice much appreciated.