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.
Note: By default, member computers follow the configuration of their domain controllers.
Policy path:
Computer Configuration\Windows Settings\Account Policies\Password Policy
Default:
7 on domain controllers.
0 on stand-alone servers.
Supported on:
At least Windows XP SP2, Windows Server 2003
Registry settings:
Password Policy security settings are not registry keys.
Reboot required:
No