Go to Teamviewer website and download teamviewer (https://www.teamviewer.com/en/)
Click "Download Teamviewer".
See at bottom of your browser , you will see downloaded file. Click on "V" then choose "show in folder". (For Chrome Web Browser)
Double click on "Teamviewer_Setup.exe" to execute installer file.
Click "Run" .
Select "Basic Installation" and "Personal/Non-commercial use". Then click "Accept - finish".
Installation done.