AFAICR, You don't have to reboot the machine. You can press `Shift+F10` again and run `ipconfig \release`. I could be wrong. There are also some email ids (e.g

AFAICR, You don't have to reboot the machine. You can press `Shift+F10` again and run `ipconfig \release`. I could be wrong. There are also some email ids (e.g. no@email.net ) in the sign up fields which allows you to create local accounts. Not that these workarounds excuse all this user hostile behavior.