Your Device Doesn T Support Miracast Windows 11 ((new)) -

You’re trying to cast your Windows 11 laptop to a big TV or wireless projector. You click the button (or press Win + K ). And then you see the dreaded message:

To get your happy ending, you need to check which part of the messenger system is failing. Follow these steps: your device doesn t support miracast windows 11

Even hardware-capable devices can trigger this error due to specific configurations: You’re trying to cast your Windows 11 laptop