The official way to get a silent installer is to and then run it from the command line with these switches. This is a clean, safe, and effective process.
If you want TeraCopy to automatically replace the Windows Explorer copy function, you may need to adjust the settings within the app after installation under Preferences > Use TeraCopy as default copy handler . teracopy pro 36 silent install mshaz1000exe free
Which are you using (e.g., PDQ Deploy, SCCM, or a simple batch script)? The official way to get a silent installer