A. This can be caused by installing DNS on a machine that has previous settings contained in the %systemroot%\system32\dns directory. To correct perform the following.

  1. Stop the Microsoft DNS server using the Services control panel applet ( Start - settings - control panel - services). Select Microsoft DNS and select stop
  2. Backup any zone files from the %systemroot%\system32\dns directory that you may want
  3. Remove the DNS server by right clicking on network neighborhood and selecting properties. Click the services tab, select DNS and click Remove
  4. Delete all files in the %systemroot%\system32\dns
  5. Reinstall DNS server using the services tab of the network control panel applet