This will allow you to scan the QR code that the Windows client is displaying. To get the QR code and connect to your PC, click the settings icons in WhatsApp and select - WhatsApp Web. The main interface will then be populated with your contacts and chat history. Get the application up and running by scanning a QR code from your screen on your phone and you'll then be authorized to use WhatsApp for PC connected to your cell phone number.
Getting started with this chat client is quite simple. It's more often than not used on mobile platforms such as Android and iOS but WhatsApp has developed a version for Windows which can synchronize with your mobile phone.
WhatsApp for PC is the desktop version of the popular instant messaging application owned by Facebook.