If all of your Word documents are locked for editing, then it's usually
because either you have not activated your Office software, or you have an
expired trial version of Office 2003. What happens if you start Word and
click on Help | Activate Product? If you are already activated, a dialog box
saying so will appear. If you are not activated, the Activation Wizard will
start. If you have an expired trial version, a dialog box will ask you to
enter a valid product key or purchase a key online.