Forgot adminastator passcode....When the laptop first pulls up

Hello,

When administrator password and there is no other account , microsoft did not post any solution in it except reformating and reinstallation.

However, you can try

username: type "administrator"
password: leave it blank and then enter

may this help, melnavz

PS:pls do not rate me if my solution not solve the issue and you need more further information. but if is invaluable solution rate me fixya.