Windows 7 Password windows 7 gave me automatically

[Rannie Gayo]

I on parental controls and a message appears that One of administrator account has no password then then i click on a standard user then i click ok but a message appear then do you want to force to have a password then i click yes. now when i log off the user. the admin account is locked up and i dont know the password.
PLEASE HELP ME:sleepy::sleepy: