Here are the most common reasons your PC doesn't support Miracast:
Before you blame your PC, it helps to understand why. Miracast is a wireless standard that essentially mirrors your screen over Wi-Fi. For it to work, your computer needs three specific things. If even one is missing, you'll get that error. pc doesnt support miracast
You’ve tried to cast your screen to a TV or wireless monitor, but Windows displays the frustrating message: “This device doesn’t support Miracast.” Here are the most common reasons your PC
Your best move: Use an HDMI cable or buy a Chromecast and use Chrome’s "Cast" feature. If you absolutely need wireless mirroring, replace your PC’s internal Wi-Fi card (on a desktop or a lucky laptop) or buy a USB Wi-Fi adapter that specifically says "Miracast Supported" (rare but they exist). If even one is missing, you'll get that error