Uninstalling WebSphere Application Server

If the WebSphere Application Server Advanced Edition is installed and migrated into the same directory as a previous Advanced Single Server Edition installation, the Advanced Single Server Edition installation is no longer a valid installation. Do not run the uninstallation program because it uninstalls the new Advanced Edition installation.

Further, if the WebSphere Application Server Advanced Edition is installed and migrated into the same directory as a previous Advanced Single Server Edition installation, the Advanced Single Server Edition property files are lost. If you plan on manually migrating any of your property files, back up the Advanced Single Server Edition property files before installing the Advanced Edition.

To uninstall WebSphere Application Server:

  1. Run the uninstwas40.exe file in the main WebSphere Application Server directory. For example, enter the command uninstwas40 at a prompt in the main product directory.
  2. Select Yes when asked if you want to uninstall the product.
  3. Select whether you want to back up your product files.
  4. After the uninstallation program runs, reboot your system.

Note that, instead of running the uninstwas40.exe file, you can uninstall WebSphere Application Server using the Add/Remove Programs option of the Windows Control Panel.

IBM HTTP Server is not uninstalled by the WebSphere Application Server uninstall program. If you installed IBM HTTP Server as part of the WebSphere Application Server installation, you must run the IBM HTTP Server uninstall program.