To run WhatsApp on Windows, you generally need or newer. Method 1: Via the Microsoft Store (Recommended) About supported operating systems | WhatsApp Help Center

View previously synced messages even without an active internet connection (though sending requires a connection). How to Download and Install on Windows (10 & 11)

Receive desktop alerts even when your browser is closed.

While you can use WhatsApp Web in your browser, the desktop app offers several advantages: