The first step before even getting started is to download "Windows Enabler".
1. Create a user profile that you want to use as your master, I create a profile for a default user that is assigned to each group of computers that I want to behave the same. Once all settings are exactly the way I want them I restart the machine.
2. Logon as a LOCAL user with administrative rights. Open start menu, right click on computer, click on properties, once properties are open, click on advanced settings, then click on settings related to logon.
3. Delete all users with existing profiles if you want them to use the new default profile, otherwise highlight the profile that you want to copy, use enabler and use press on copy to.
4. When the box comes up, use the bottom of the box to activate it for everyone (just type in everyone) Once that is completed, in the copy to location type in C:\users\default -- this copies the profile over the default profile. Allow that to complete and close this program.
5. Now run "regedit"
6. Highlight HKEY_USERS
7. Click on File, click on load hive, migrate to c:\users\default and in the file blank type in ntuser.dat and click Open.
8. In the blank Hive Key Name diaglog box that comes up enter a name that you will remember, I use Default_User, but you can use any name, it really doesn't matter.
9. Go back to regedit and expand Hkey_Users and highlight the name you just created.
10. Go to Edit and click on Find and put in the name of your original default profile (the user profile you copied, in my case here it was "snowmr") and click "Find Next"
11. Delete whatever comes up highlighted, use F3 and continue the process until you delete all instances of that name. Delete the whole key, windows will recreate it with the new users name, on some pages you will see the name multiple times, use shift or control to highlight all instances.
12. Once you are done, re-highlight the name you used and click on file and unload hive.
13. Restart the machine (don't just log off)
14. Logon as a new user and they will have all the settings that you created for the default user.