This sounds absurd, but it works for many Realtek and MediaTek adapters.
This forces the Wi-Fi adapter to re-initialize its virtual "SoftAP" capability (which Miracast requires). If you see "Searching for devices" after this, the error is resolved. your device doesn t support miracast windows 11
Print this or save it for quick reference: This sounds absurd, but it works for many
| Step | Action | Success Rate |
| :--- | :--- | :--- |
| 1 | Install "Wireless Display" feature (Settings > Apps) | 80% |
| 2 | Download official Wi-Fi driver from Intel/Realtek/Qualcomm | 90% |
| 3 | Restart WLAN AutoConfig service | 40% |
| 4 | Run dxdiag to confirm hardware support | Diagnostic |
| 5 | Toggle Airplane Mode | 20% (but worth it) |
| 6 | Re-register DLLs (Admin CMD) | 15% |
| 7 | Uninstall hidden virtual adapters | 50% | This forces the Wi-Fi adapter to re-initialize its
Before you try to fix it, let's see if your laptop is physically capable.
Windows 11 treats Miracast as an optional feature.
After reboot, try Win + K again.