The Archive and Install feature preserves most, but not all, systems settings. The following settings are not preserved when you choose Archive and Install, even if you select "Preserve user and network settings."
- Whether a network time server is used or not.
- The list of configured printers (stored in the file /etc/printers.conf).
- The computer's time zone (stored in the file /etc/localtime).
- The resolution of your display(s), and other settings if more than one display is connected, such as arrangement (stored in the com.apple.windowserver.plist in /Library/Preferences, ~/Library/Preferences/ByHost/).
- Sharing preferences pane settings (stored in /etc/hostconfig):
- Personal File Sharing
- Personal Web Sharing
- Windows File Sharing
- Remote Login
- Remote Apple Events
- Printer Sharing
- Computer name
This is expected behavior.