If you are looking to change the windows default password expiry notification from 14 days to somthing else then this should help.

The default value of 14 days is stored in the DWORD registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\passwordexpirywarning simply changing or creating this key will alter the number of days prior to expiry the user will get notified.

If like me you want to change this for more than one computer then the below vbs script run as part of a logon script etc should do the trick.

The below script will list the last password change date (pwdLastSet) of all users in the current domain.

Usage: cscript C:\List_User_pwdLastSet.vbs > C:\Report_Password_Changes.csv

Core, PowerShell, administrator, Server 2008, password, windows, Windows Server

The following command will prompt you for a new administrator password on a Windows Server 2008 Core install using the "PowerShell"

net user administrator *

When prompted enter the new password and confirm the new password