Accounts Deleted Through Control Userpassword2?

I was trying to add remove some accounts on my computer and by mistake i removed both the accounts.Administrator and homeuser/name with the control userpassword2 option.Now i am unable to log into the computer. Neither does administrator work, neither the username i used earlier.Keeping the username and password blank does not work either. each time it shows "enter user name "hitting escape does not work either.I used a third party app named windows unlocker for resetting the windows admin password, that does not work either as there is no username listed to unlock.