Select Start Menu -> Control Panel -> Add/Remove Programs -> Sun Java System Web Server
Select Start Menu -> Programs -> Sun Java System Web Server -> Uninstall Web Server.
The Sun Java System Uninstall window appears. This window lists all the Sun Java System installed in this directory. Click the checkbox next to Sun Java System Web Server and click Uninstall. Note that uninstalling Sun Java System Web Server automatically uninstalls the Administration Server, since it is an instance of Sun Java System Web Server.
The uninstall program uninstalls the server. You see a window showing the progress of the uninstall.
When the uninstall is complete, a message appears saying that the configuration files have not been deleted, and that you should rename them before reinstalling the server. Click OK to continue.
The uninstall program does not remove every server file. For example, it does not remove keys and certificates, configuration files, logs, ACL files or the document root.