Step 1: Undeploy the AppeonServer application from the WebSphere Application Server Console.
Step 2: Shut down PowerServer and WebSphere Application Server.
Step 3: Select Windows Start | Control Panel; under Programs, click Uninstall a program; select Appeon PowerServer 2020 for WebSphere and click Uninstall to begin the uninstall process.
Step 4: Click Next and then OK to confirm the removal of PowerServer.
Step 5: Click Finish when PowerServer is completely uninstalled.
Step 6: After the uninstall process is complete, remove any files or folders left in the PowerServer installation folder.