If you forget the administrator password and don't have a password reset disk or another administrator account, you won't be able to reset the password. If there are no other user accounts on the computer, you won't be able to log on to Windows and will need to re-install Windows. However you can try some free windows password tool like Ophcrack, UUkeys and ntpassword too. http://ophcrack.sourceforge.net/ https://www.recoverywindowspassword.com/reset-forgotten-windows-10-login-password.html
Note: The steps provided in the link below are not confirmed steps from window10. Please try those steps at your own risk.
I think you might be an expert on this or you've had this problem before, i am a Windows 10 user ,
The same . i forgot Windows 10 password , but i am using local account is not Microsoft , I just looked at it on Google and most tutorials on how to use Microsoft account to reset password , as you said , these tools can support local accounts ?
P.S i also found this post on Google ,