I did a quick search on Google and found some basic steps. It sounds like you create a user account with all the config options you want. Then, rename the default pfoile under C:\Users to Default -Copy. Go into your user profile options under System Properties, and copy the current user over the Default profile. Now, if you were to reboot and log in as a new user, you should get all your same config options by default, like wallpaper, etc.