Try casting to another Windows 11 laptop or a known-good Miracast TV. If it works, your PC is fine – your TV is the problem.
If any of these three pillars are broken, you get the error. your device doesn t support miracast windows 11
| Cause | Likelihood | Notes | |-------|-------------|-------| | | Medium | Some older or cheap adapters don’t support it. | | Driver doesn’t expose Miracast | High | Even capable hardware may have generic drivers. | | Graphics driver issues | High | Intel/AMD/NVIDIA drivers can break Miracast. | | Windows version limitation | Low | Windows 11 Home/Pro support it; N/KN editions may lack Media Features. | | Group Policy / IT restrictions | Medium | Managed devices often have it disabled. | | TV/monitor doesn’t support Miracast | Low | But the error appears on the PC side. | Try casting to another Windows 11 laptop or
Search for "Miracast" in the text. If it says or "Not Supported by Graphics driver" , your hardware or current driver is incompatible. Check via Command Prompt : Open Command Prompt and type netsh wlan show drivers . | | Windows version limitation | Low |