To get a clean uninstallation of Navtracker, please do the following:
1. Uninstall NavTracker via Windows Add/Remove Programs
2. Open File Explorer
3. In the address bar type %LOCALAPPDATA%\NAVTOR
4. Find the "NavTracker" folder and delete it
5. Run the NavTracker installer again
If still unsuccessful, try the following:
1. Uninstall NavTracker via Windows Add/Remove Programs
2. Open File Explorer
3. In the address bar type %LOCALAPPDATA%
4. Find the "Apps" folder and delete the folder "2.0" inside this
5. Run the NavTracker installer again