Unable to uninstall (Settings aren't removed)

Have tried numerous times to uninstall due to a setup error that has the UI opening to the wrong webpage. I believe I must have changed this trying to setup a newsgroup and now I cannot correct the error because the page can never load. Please advise. I am using programs and features to uninstall.

Application data for drone is not removed when uninstalling, you can remove it from C:\ProgramData\NzbDrone manually. Config.xml is the file that controls the port, which you can edit to change the port or delete to start some of the settings from scratch.

I moved a post to a new topic: Unable to Uninstall from Add/Remove Programs