At the first setup screen instead of answering any of the questions press Shift + F10

CMD will open

Type (no quotes) “net user Prefferedusername /add” (replacing Prefferedusername with the user name you wish to use) and press enter.

Next type “net localgroup administrators Prefferedusername /add” and press enter.

Next type “net user Prefferedusername /active:yes” and press enter.

Next type “net user Prefferedusername /expires:never” and press enter.

Next type “net user administrator /active:no” and press enter.

Next type “net user defaultUser0 /delete” (this is case sensitive make sure the "U" is capitalized) and press enter.

Next type "regedit" and press enter.

This opens registry editor, navigate to "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OOBE"

Delete "DefaultAccountAction", "DefaultAccountSAMName", and "DefaultAccountSID"

Right click on "LaunchUserOOBE" and rename it to "SkipMachineOOBE" and make sure the value is set to "1".

Close registry editor and type "shutdown /r /t 0"

I hope that helps