You can easily uninstall Tally.Developer 9 by going to the Tally.Developer 9 installation folder in your computer
To uninstall Tally.Developer 9
1. Go to Tally.Developer 9 installation folder in your computer.
2. Double-click the Setup.exe icon.
3. Click Uninstall in the Tally.Developer 9 Installer l, as shown below: