Miracast is the wireless connection standard used by Windows 10 to connect a monitor, projector or TV to your computer, without using cables of any kind. Thanks to this support it is possible to transmit the PC screen on TV or any other monitor, immediately, obtaining a connection equivalent to that of an HDMI cable. This is particularly useful in laptops, for mirroring displays and it is also an excellent way to watch movies and videos on TV from your computer, without the need for other cables, not even a USB cable or devices like Chromecast.
Projecting Windows 10 on a wireless screen like that of the TV with Miracast is really easy : you just have to make sure that the TV (each smart TV supports Miracast), the monitor or the projector supports wifi connections and activate the functionality in the settings. From the PC, then, press the button at the bottom right of the notifications to open the switch panel and use the Project button. You can then decide to see the desktop on the wireless screen or you can duplicate the screen or even extend the screen to use the TV as a secondary monitor. Once you have chosen the connection mode, click on the " Connect to Wireless screen " link. Windows 10 begins the search for the detected devices and, once the TV appears in the list, you can proceed with the connection.
The research should detect the presence of a Miracast supported device, to be used to project Windows 10 on the TV or another wireless monitor.
If still nothing is detected or if the connection to the screen does not work, then you need to check if the PC supports Miracast. There is in fact the possibility that the PC is too old and lacks this function or that it is the fault of the driver of the video card, not updated.
To check that the video card supports Miracast, instead, proceed as follows : open the start menu and search for dxdiag to open the DirectX diagnostic page. Here, go to the page dedicated to the screen, look to the right under Driver and look for the Driver Model line: If it is written WDDM 1.3 or higher then it is fine, otherwise the system is not compatible with a Miracast connection.
Also, again from DXDiag, then press the Save all information button and save the DxDiag.txt file in a folder or on the desktop.
Open the generated txt file and look inside the Miracast line; if it says Available, with HDCP, then it's fine, if it says Not Available then the computer doesn't support Miracast and there's not much to do.
It is also important that the PC is not connected via VPN and therefore disable any VPN .
In addition, if the connection does not work, try also disabling the Windows 10 firewall, in Settings> Update and security> Windows security> Firewall and network protection ).
Another way to solve problems with Miracast is to update or reinstall the network drivers . To do this, you can open the Device Manager by pressing the right mouse button on the Start button at the bottom left. Here, expand the section of network cards, find the active Wireless Network adapter for computer wifi, right click on it and do Uninstall device . Restart your PC and Windows will be able to reinstall the network drivers automatically.
In other articles, to finish, we also explained how:
- Use the TV as a wireless secondary screen on the PC
- See the screen of another PC or Android in wifi on Windows 10
Projecting Windows 10 on a wireless screen like that of the TV with Miracast is really easy : you just have to make sure that the TV (each smart TV supports Miracast), the monitor or the projector supports wifi connections and activate the functionality in the settings. From the PC, then, press the button at the bottom right of the notifications to open the switch panel and use the Project button. You can then decide to see the desktop on the wireless screen or you can duplicate the screen or even extend the screen to use the TV as a secondary monitor. Once you have chosen the connection mode, click on the " Connect to Wireless screen " link. Windows 10 begins the search for the detected devices and, once the TV appears in the list, you can proceed with the connection.
Article Index
- Miracast connection problems on the wireless screen
- Check if PC and video card support Miracast
- Check the Wifi connection
- Conclusion and other resources
Miracast connection problems on the wireless screen
In case of problems, if using the Project button you cannot find the wireless screen to be connected, then you can go to Windows 10 Settings, in the Devices section. Under Bluetooth and other devices, click on Add Bluetooth or other device and then, in the following window, click Wireless screen or Dock .The research should detect the presence of a Miracast supported device, to be used to project Windows 10 on the TV or another wireless monitor.
If still nothing is detected or if the connection to the screen does not work, then you need to check if the PC supports Miracast. There is in fact the possibility that the PC is too old and lacks this function or that it is the fault of the driver of the video card, not updated.
Check if your PC supports Miracast
To check that your PC supports Miracast
, press the Windows - R keys together on the keyboard to bring up the box to execute commands and type Powershell (or search for Powershell on the Start menu and start it)). In Powershell type the command: Get-netadapter | select Name, ndisversion . If the result of the command shows the value 6.40 or higher, then it is fine, otherwise, if there is a lower value, Miracast is not supported by the PC.To check that the video card supports Miracast, instead, proceed as follows : open the start menu and search for dxdiag to open the DirectX diagnostic page. Here, go to the page dedicated to the screen, look to the right under Driver and look for the Driver Model line: If it is written WDDM 1.3 or higher then it is fine, otherwise the system is not compatible with a Miracast connection.
Also, again from DXDiag, then press the Save all information button and save the DxDiag.txt file in a folder or on the desktop.
Open the generated txt file and look inside the Miracast line; if it says Available, with HDCP, then it's fine, if it says Not Available then the computer doesn't support Miracast and there's not much to do.
Check the Wifi connection
Miracast uses Wi-Fi Direct technology for its connection so you must be sure that the devices, i.e. computers and TV or other wireless screen, are connected on the same wifi network.It is also important that the PC is not connected via VPN and therefore disable any VPN .
In addition, if the connection does not work, try also disabling the Windows 10 firewall, in Settings> Update and security> Windows security> Firewall and network protection ).
Another way to solve problems with Miracast is to update or reinstall the network drivers . To do this, you can open the Device Manager by pressing the right mouse button on the Start button at the bottom left. Here, expand the section of network cards, find the active Wireless Network adapter for computer wifi, right click on it and do Uninstall device . Restart your PC and Windows will be able to reinstall the network drivers automatically.
Conclusion and other resources
In the event that the TV does not have Miracast support, there is a way to add it by buying a device to connect to its HDMI socket. The official Microsoft device is the wireless adapter sold on Amazon. Alternatively, you may also prefer to use an Amazon Fire TV Stick, which has Miracast support.In other articles, to finish, we also explained how:
- Use the TV as a wireless secondary screen on the PC
- See the screen of another PC or Android in wifi on Windows 10
