Your Device Doesn T Support Miracast Windows 11 Jun 2026

If you are trying to cast to your PC (using your PC as a second monitor for your phone), you will get a support error if you haven't manually installed the via Settings > System > Optional Features. It is not installed by default in many clean Windows 11 installations.

If it says your hardware supports it.

Miracast requires a specific "handshake" between your hardware and software. If any link in this chain breaks, the feature fails: your device doesn t support miracast windows 11