“Commercial Use Suspected”1. First Close Teamviewer, if it is running.
2. Click on Start –> Run –> type %appdata% –> delete TeamViewer folder
3. Delete registry folder: hkcu/software/teamviewer
4. Delete registry folder: hklm/software/teamviewer
5. Change the MAC Address of your LAN card, this tutorial can help you (
http://www.irongeek.com/i.php?page=security/changemac).
6. Restart your Teamviewer and you should get a new ID and also should solve the “Commercial Use Suspected” problem.
http://www.techbuzz.in/how-to-solve-teamviewer-commercial-use-suspected-problem.php