If you encounter problems while uninstalling a Windows application, please refer to this troubleshooting tool developed by Microsoft. It automatically repairs issues when you’re blocked from installing or removing programs and also fixes corrupted registry keys.
Manual uninstall
Remove all files from the installation folder, e.g., Program Files\TeraCopy.
If some files can't be removed, rename them and restart Windows.
To clear all app settings and data, open the %APPDATA% folder and delete the application folder, e.g., %APPDATA%\TeraCopy.