Microsoft Windows Server 2003 Administrator's Companion, 2nd Edition

The Windows Server Post-Setup Security Updates window (shown in Figure 7-1) is the first thing that you see when you log on to a server as an administrator after performing a clean install of Windows Serve 2003 with Service Pack 1 or Windows Server 2003 R2. Until you click Finish in the Windows Server Post-Setup Security Updates window, Win- dows blocks all inbound connections to the server (except port 3389 if you enabled Remote Desktop during automated Setup). This prevents viruses or hackers from com- promising the security of the server while you install the latest software updates and an antivirus program. The Windows Server Post-Setup Security Updates window does not appear if you explicitly enable or disable the Windows Firewall during Setup using an Unattend.txt file or after Setup using Group Policy. If the window does not appear, update your server manually using Windows Update and also configure Automatic Updates manually.