Whatsapp has started in Windows PC and Apple desktop. Now WhatsApp is in all platform. On tuesday 10th may 2016 whatsapp has launched for desktop, and now we can use it on PC or Desktop. Whatsapp will only run on PC having windows 8 or above.
I personally searched on windows 10 store there I didn't find any Whatsapp application.
HOW TO RUN WHATSAPP ON WINDOWS PC OR DESKTOP.
If you really want to use whatsapp on windows desktop then visit Whatsapp.com/download there you will find suitable application for your desktop then download the application and install on your computer. After opening Whatsapp it will ask to scan QR code. Then open Whatsapp on your handset and open setting there you will find Whatsapp web. Click on it and camera will start then go move your camera on QR code shown on computer. Hurrah you have activated whatsapp on windows PC and enjoy.