You can reset the admin user's password as follows:
1) Stop the CompleteFTP service
2) Open a command prompt with Windows administrator privileges (cmd)
3) Run the following command in the command prompt where password is the new password for the admin user.
For versions 22.0.0 and higher (64 bit):
"C:\Program Files\Complete FTP\Server\cftpconfig.exe" /p newpassword
For versions 21.1.0 and lower (32 bit):
"C:\Program Files (x86)\Complete FTP\Server\cftpconfig.exe" /p newpassword
4) Restart the CompleteFTP service
