p8z77-m pro don't start up

[CDVM]

hello, i have an asus p8z77-m pro and i was out of my house for 2 days and when i come back and turn on my computer it ask me for a password that i don't know... the "enter password" appear after the screen of "Asus", it don't even let me boot the bios... so i guess i have to know the default password because i never changed it... so the question now is: what is the default password of asus mobo? and if it don't have a default password so how i can solve this? :S

thanks.

 

[CDVM]

ok, i find the password, i never thought that the password will be the computer username so now the question is: how can i disable that the computer ask me the password every time i turn the computer on...

thanks...