Computer Configuration\Windows Settings\Account Policies\Password Policy
Enforce password history - This setting keeps track of your passwords and will not allow a password to be reused within a given time
Maximum password age - The longest period of time a password can be used before the system requires a change
Minimum password age - The minimum amount of time a password can be used before it can be changed
Minimum password length - The minimum number of characters a password must be
Password must meet complexity requirement - The passwords cannot contain the user's account name or parts of the user's full name and cannot exceed two consecutive characters on the aforesaid information, the password must be at leastsix characters in length, and must contain upper characters (A - Z), lowercase (a - z), numbers (0 - 9) and contain symbols.