I'm not sure I understand. So does it work fine or doesn't it? Do you mean that you cannot login anymore? Not even in any other SSH/SFTP client? OpenSSH uses native system (Windows) accounts. So you can manage the accounts and their password using standard Windows administration interface.

I created a SFTP server using OpenSSH in Windows. Using WinSCP to manage server and it works fine. Now it does not recognize the password at all. How can I either retrieve the password or create a new password. I did generate a URL and saw the password, but it does not work. Please help!