To uninstall:
On Windows
Use Control Panel > Programs and Features to uninstall Micro Focus Reflection for the Web.
If MSS is on the same machine, you have the option to uninstall it along with Reflection for the Web.
On Linux or UNIX systems
Run the uninstaller found in the Reflection for the Web installation directory.
If MSS is on the same machine, the Reflection for the Web uninstaller is found in this directory: mss/server/web/webapps/rweb-client.
You also have the option to uninstall MSS.