When you forgot Windows password, you can enable the built-in Administrator account to reset your user account password, or troubleshoot other special problems. The built-in Administrator account has a lot of privileges to make changes on computer, such as change security settings, install software, access all files on the computer, and make changes to other user accounts. If the default Administrator is not enabled, it is hidden in system, can't be seen by anyone. There is a built-in Administrator account with blank password on Windows 10 system. 5 ways to activate/hidden administrator account in Windows 10
