Go through the normal installation process until you get to the sign-in screen
Press <Shift> + <F10> to open elevated command prompt

net user "YourUserName" */add
net localgroup administrators "YourUserName" / add
net user "YourUserName" /active:yes
net user "YourUserName" /expires:never
net user "Administrator" /active:no
net user "defaultUser0" /delete

Run net user to ensure that all was done properly. You should see the new user as admin account, and no default user.

Run regedit Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OOBE
Delete 3 values: DefaultAccountAction, DefaultAccountSAMName, DefaultAccountSID
Rename value LaunceUserOOBE to SkipMachineOOBE and sure value is 1. Case is important.
Exit regedit.

Reboot machine with shutdown /r /t 0