administrator passord

hello,
i can't instsll system os x when i select partition message appears :
to continue installing the x, you need to log on as administrator.
Enter a name and an administrator password to allow this.

thanks

puts the operating system on USB and turn on the Mac by pressing ALT touch to boot on USB AND INSTALL NEW OS X ...
if u want remove the password .. utility TERMINAL type removepassword and selecte your hard drive to reset password
if the hard drive locked boot on MAC OS X 10.7 this system will remove the password

thank you man, resolved