To remove the application, first you need to make sure that it's completely closed. Click on the system tray arrow to expand the selection and close the desktop application by right clicking on icon then Exit. Alternatively, make sure that the application does not run in the background. Press Ctrl + Shift + Escape to launch the Task Manager and locate the Badoo process in the list. If it exists, kill it using End Task then you can proceed to actuall uninstall operation. Go to Start > Control Panel > Add or Remove programs / Programs and Features and select it from the list. Click Remove/Uninstall and follow the on-screen instructions.