I am trying to upgrade a Small Business Server 2000 and I am failing after it\nswitches to the screen telling you how many minutes until completion. The\nmessage i am getting is this " Setup was unable to create, locate, or modify\na critical file c:\winnt.sif needed to start windows. Access is denied.\n\nI have tried searching the internet and that file has something to do with\nunattended installations which i am not doing. I am simply running setup from\nwithin Server 2000. Any ideas? Thanks in advance.