How to get your computer to support Miracast
Windows10 continues support for Miracast on the basis of Win8.1. That is, you can wirelessly transmit audio and video, and wirelessly display images on the big screen. But not all laptops or pads with windows10 support Miracast. You can also run the dxdiag.exe command to test and verify that it is supported.
The dxdiag.exe command shows whether a computer supports Miracast
1．The WIN+R key combination starts “running” the program [Ctrl +R between Alt];
2．Enter “Dxdiag.exe” in the “Run” input box to make sure it doesn’t pop up right away. It usually takes 5-10 seconds for the DrectX diagnostic tool to pop up.
3．Pop up the DrectX diagnostic tool and select “Yes” to start detection.
4．When the detection progress bar disappears, it means that the detection is completed and “save all information” is sent to the desktop.
5．Open the saved TXT document and Ctrl+F looks for “Miracast”. If the following expression is found, the Miracast function is not supported;
Miracast:Not Available，Miracast:：Available,with HDCP.
PS: The computer Miracast screen needs our system, display card and network card all support miracAST protocol. If computer hardware does not support Miracast:, the user can either change the device or perform Miracast as a “bridge” by means of a wireless screen projection device, which is a mainstream cross-platform display device.
If the hardware itself supports the Miracast protocol, but is just a problem with software drivers, wireless docking stations, etc., it can be fixed by following the method below.
1．Fixed wireless display or wireless docking station connection issues
Make sure your Windows10 device supports Miracast. Here are the steps to check in your computer: Select the Start button, type Connection, and then select Connection from the list of results. In the connect app, the text will tell you if your Windows10 device supports it. To view your Windows10 phone, on start, swipe to the list of apps and look for “Continuum.” If Continuum appears on the list of all apps, your Windows10 phone supports Miracast.
Make sure WLAN is turned on. To do this on your computer, select the network (or) icon on the far right of the taskbar, and then check the WLAN quick action. On your Windows10 phone, swipe down from the top of the screen to open the operation center, then check for “WLAN” quick operation.
Make sure the display supports Miracast and verify that it is turned on. If your wireless monitor is not supported, you will need an Miracast adapter (sometimes called a “hardware protection device”) that plugs into an HDMI port.
Make sure your device driver is up to date and that you have the latest firmware installed for your wireless monitor, adapter, or docking station. Please refer to the support information acquisition instructions on the manufacturer’s website or search for the manufacturer’s application in MicrosoftStore for help.
Restart the computer or phone and wireless monitor or docking station.
Remove the wireless display or docking station and reconnect. To delete a device, turn on Settings, then select device, >, bluetooth and other devices in turn. Select the wireless display, adapter, or docking station, and then select Remove Device. Then try to reconnect.
2． Make sure your computer supports Miracast and has the latest drivers
Right click on the Microsoft logo, select the device manager, find a network adapter options, and the directory under the wireless network card driver unload drop, restart the computer, then click “scan test hardware changes”, system will install the driver again under the networking status, after the installation, restart again, check it later with projection.