There are a number of ways to reset a Windows Administrator account's password. It is best to try to recall it as best as possible. Here is a link to a website regarding methods utilized to reset Windows Administrator account passwords.
https://www.auslogics.com/en/articles/reset-forgotten-windows-10-administrator-password/
You can also try using a password reset app from a CD/DVD or USB drive. More information can be found regarding this on the Internet.
https://www.auslogics.com/en/articles/reset-forgotten-windows-10-administrator-password/
You can also try using a password reset app from a CD/DVD or USB drive. More information can be found regarding this on the Internet.