excess accounts

Over the years I accumulated new accounts with strange names like All_Users.Windows and Owner.Owner-codenumber. After suitably transferring the contents of the ORIGINAL accounts, I was able to delete the original accounts but these two resist deletion and renaming because they are 'System Folders'. I expect there to be ONE that resists renaming, but TWO seems excessive. These two are in addition to Administrator and they are found in Documents and Settings. Is there any possibility of simplifying/rationalising these account/user names (or at least one of the two) ? If so, how ?

 

Steve R Jones
The entities that I was inquiring about do not even appear in the 'Users and Groups' of Manage. That is why I wrote that they appear in Documents and Settings.

I assumed that booting in Safe Mode as Adminstrator would make it easier for me to rename those entities (or delete one), but I discovered that it gave me NO advantage in that, but was retrograde in the sense that it created yet another 'entity' in Documents and Settings - the very opposite to what I was trying to achieve. Luckily that entity was deletable.