- Go https://www.teamviewer.com
- Click the Download button
- Follow the instructions to save the setup file
- Run the setup file you have downloaded previously
- Select Installation to access this computer remotely (unattended) 1 under How do you want to proceed?
- Under How do you want to use TeamViewer? select the option that suits you.
- If you want to use TeamViewer commercially (for your Business), select Company / Commercial use 2
- If you want to use TeamViewer with friends and family, select Personal / Non-commercial use 3
- Click Accept – finish 4 to start the installation.
source: TeamViewer Community