У вашего броузера проблема в совместимости с HTML5
Most of my viewers are facing problems while installing WhatsApp for PC. In this current tutorial I’m going to show you the 4 methods of installing WhatsApp on PC with or without Graphics Card. Apart from this, I will explain few common problems that most of the users might face during the installation process.
First Method is by installing BlueStacks on Graphics card PC.
Download BlueStacks: www.bluestacks.com
Second Method is by installing WhatsApp for PC without Graphics card.
Edited Version of BlueStacks: https://goo.gl/ZvPJXP
Third Method is by installing Android on PC using SDK Manager.
Download SDK: www.developer.android.com/sdk/
Fourth Method is by Android Emulator called Andy
Download Andy Android Emulator: http://www.andyroid.net/
Install Android Apps on PC using Andy Android Emulator
https://www.youtube.com/watch?v=LBFyBYdJewE
Install BlueStacks without Graphic Card
https://www.youtube.com/watch?v=DhkyNLdbc4c
4 Ways to Install WhatsApp for PC & FAQ’s
https://www.youtube.com/watch?v=41QCoZuaImo
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