Computer Configuration\Administrative Templates\Printers
Determines whether the system prunes (deletes from Active Directory) printers that are not automatically republished. This policy applies to printers running operating systems other than Windows 2000 and to Windows 2000 printers published outside of their domain.
The Windows 2000 pruning service prunes printer objects from Active Directory when the computer that published them does not respond to contact requests. Computers running Windows 2000 detect and republish deleted printer objects when they rejoin the network. However, because
You can enable this policy to change the default behavior. To use this policy, select one of the following options from the Prune non-republishing printers box:
Note
This policy applies to printers published by using Active Directory Users and Computers or Pubprn.vbs. It does not apply to printers published by using Printers in Control Panel.
Tip
If you disable automatic pruning, remember to delete printer objects manually whenever you remove a printer or print server.