How to use WhatsApp on any Windows PC or laptop
We show you how to download, install and use WhatsApp on your Windows PC. From Here
The setup may run automatically, otherwise head to your downloads folder and run the WhatsAppSetup.exe file.
Now what you need to do is scan the QR code on the screen with your phone using WhatsApp. (Open WhatsApp, click Menu and select WhatsApp Web).
Once the QR code is recognised, the desktop app for Windows will be linked with your account and you’ll be automatically logged in. You can now use WhatsApp on your PC.
Note: Since the desktop app uses your mobile to sync messages, you’ll probably want to make sure its connected to Wi-Fi to avoid racking up any hefty bills for data usage.