I can't reinstall the program or upgrade to a new version / When I try to launch the program the n-Track setup comes up and tries to reinstall
From N-Track Wiki
Sometimes, probably due to Windows system files corruption or interference by system tools such as Anti-virus and anti-spyware programs, the n-Track setup will refuse to install the program claiming that it can't uninstall the existing version. You can try using the Microsoft Windows Installer Clean-Up utility to remove all traces of the program and then reinstall or upgrade to a new version. Alternatively you can try to manually delete the following registry keys (using Regedit, that you can open selecting "Run" from the Windows Start menu and typing "Regedit"+enter): HKEY_CURRENT_USER\Software\Microsoft\Installer\Products\A0E21374C340D9046B0D412854F7C2AD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{47312E0A-043C-409D-B6D0-1482457F2CDA} Then try to relaunch the installation of the latest version. Try to close or disable any anti-virus/anti-spyware/system-cleanup tools you may be running as they might interfere with Windows Installer.
