A: Uninstall ODEON by using the Add/Remove (or Uninstall) programs facility in the Windows Control Panel.
As an alternative, you can open the folder Program Files on your hard disk and search for the ODEON folder (e.g. Odeon11Combined). Open the folder and run the uninstall file (e.g. uninst.exe). ODEON will not directly delete the data folders in order to protect the files you have created so far. You may delete them manually afterwards. Please note that for a 64-bit PC system, the ODEON program files are stored at folder Program Files(x86).