Step 4: The application will ask if you are sure to save to the Telegram Desktop folder, if you agree, click Next or you can change as you like.
Step 5: If you do not want the application to create a shortcut icon on the screen, uncheck check Create a desktop icon and click Next
Step 6: Click Install to start the application
Step 7: After that, the installation process will take place
Step 8: When the installation process finishes, click Finish to close the installation dialog box.
Step 9: To start using, click Start Messaging
Step 10: You select Vietnam country, enter the registered phone number and click Next
Step 11: Enter the code in the box below and click Next
Note : If a message appears that the activation code cannot be sent because you have not installed the application on the smartphone , do the following
Visit the Telegram homepage and drag down to the footer, click on Web-browser
You also proceed to select Vietnam and then enter the phone number to receive the activation code
Step 12: Go back to Telegram interface, select your display name and avatar and click Sign Up
Step 13: This is the main interface of the Telegram version on your computer, you can use it to chat with friends already.
Good luck!