Reinstalling WebLogic Server

If you need to reinstall an identical version of WebLogic Server in the same location as a previously existing installation for any reason, first remove the previous installation by clicking the Uninstall Oracle WebLogic shortcut under Start | All Programs | Oracle WebLogic. This will invoke the Oracle Uninstaller wizard, which leads you through the simple steps necessary to remove the previous installation. Make sure you stop all running WebLogic Server instances before you start uninstalling—that way, the Uninstaller will automatically remove all the files and directories under WebLogic Server Home.

You can add new products to an existing installation, but you can't reinstall the same WebLogic Server release over an existing WebLogic Server installation of the same release.