Each one of the various users has been created by an administrator of the computer, at one time or another, and will have a separate set of desktop settings and a different set of "My Documents" folders.. If you are the only one using the computer then there should be an "Owner" profile, an "Administrator" profile, a "Default User", and an "All Users" profile. (The last two are default settings used by Windows so it's best to leave them alone.) If there are other users of the computer, then they also will have folders with various names.. That's the way it's supposed to be.. As long as there are no other users of the computer, then any of the others can safely be removed by using the "User Accounts" icon in the Control Panel. Each one of those profiles should be listed in the "User Accounts" section except for "Administrator" which may only be visible on an XP HOME machine after restarting into Safe Mode..
Before removing the unnecessary user profiles, it's best to grab all your important documents and files from each of the various users and consolidate them into your current profile, which on most XP HOME computers is "Owner". Be sure to keep the "Administrator" profile as a backup profile.
Hope this helps.
I have XP SP2, and when I go to C/documents and settings, I find 12 folders titled variously Owner****, Administrator.David*** and the rest are Owners***. They all have different contents, making it rather difficult to find things. I haven't knowingly created these folders. I intend to try to compact them into one folder and delete the others. Good idea? and also try to prevent more folders appearing. TIA