If there has been a need to uninstall the Symphony Desktop Application (SDA), it's best to perform what is known as a clean install when attempting to use Symphony again.
A clean install ensures the previous install is completely erased, including any of the previous install's files, such as a local configuration file or a cache file. If the previously installed version was encountering errors, they should no longer occur with a brand new clean install.
Perform a clean install of the SDA by following these steps:
1. Completely close any open instances of the SDA
2. Fully uninstall the SDA from your system using a tool such as Add or Remove Programs (Figure 1 and Figure 2):
Figure 1 Add Or Remove Programs
Figure 2 Symphony
3. Check for the existence of a Symphony folder in%appdata% and %localappdata% and if it is present in either location, delete it
4. Run the SDA installer program for the desired version to be installed
5. Open Symphony and confirm it is running normally