1
If the built-in Windows default Administrator account is enabled, usually that account would not have a password set on the account.
2
If you are unable to remember the password for the admin local account you created, try using one of these steps to reset the password.
If you log into Windows with a Microsoft Account, try the steps on this page to reset your password.
2
If you log into Windows with a Local Account, try the steps on this page to reset your password.