Minimum password length This security setting determines the least number of characters that a password for a user account ...

Minimum password length  This security setting determines the least number of characters that a password for a user account may contain. You can set a value of between 1 and 14 characters, or you can establish that no password is required by setting the number of characters to 0.  Default:  7 on domain controllers. 0 on stand-alone servers.  Note: By default, member computers follow the configuration of their domain controllers.