Modern multimedia systems make it easy to transfer images from a desktop PC or laptop monitor to a large TV screen, eliminating unnecessary cables and complex wiring. In the operating system Windows 11 This process has been significantly simplified thanks to the introduction of new protocols and an updated settings interface, making wireless content transfer accessible even to inexperienced users.
There are several key technologies for achieving this goal, each with its own advantages and limitations depending on your goals. You can use standard logging. Miracast For full screen duplication, use technologies DLNA to stream video files or use the browser's built-in features Google Chrome And Microsoft Edge to display individual tabs.
To get started successfully, it's crucial that both your computer and TV are connected to the same wireless network, as data transfer occurs locally. If you plan to watch high-definition video, make sure your router supports the standard. Wi-Fi 5 or Wi-Fi 6to avoid delays and image artifacts.
Checking device compatibility and preparing the network
Before you begin setting up the broadcast, you need to make sure that your equipment is technically ready for wireless communication. Most modern TVs with the feature Smart TV have a built-in receiver Miracast, which in the Samsung interface may be called Screen Mirroring, and in LG - Screen Share.
On the computer side, support for the technology is checked through system commands, allowing for a precise determination of the presence of the necessary drivers and Wi-Fi modules. Windows 11 also requires the network adapter to support access point or receiver mode, which is relevant for older laptop models.
- 📺 Make sure that the wireless connection function is activated on your TV (often it is hidden in the signal source menu
SourceorInput). - 📶 Make sure both devices are on the same subnet, meaning they are connected to the same router and not to a guest network or an extender with client isolation.
- 💻 On your computer, open Device Manager and check for the adapter. Microsoft Wi-Fi Direct Virtual Adapter, which is necessary for direct connections.
⚠️ Attention: Some corporate routers or guest networks in hotels may block direct connections between devices (Client Isolation). In this case, streaming won't start until you access the router settings or use your home network.
If you are using an external USB Wi-Fi adapter on a desktop PC, make sure it supports the standard 802.11n or higher, as older models are standard 802.11g will not provide sufficient bandwidth for the video stream.
Using the built-in Connect feature in Windows 11
The easiest and most native way to stream an image is to use the built-in app. Connect (Connection) based on Miracast technology. This method allows you to completely mirror your desktop or extend it onto your TV screen, which is convenient for showing presentations or viewing photos.
To activate the function on your TV, you need to launch the corresponding application. In devices Samsung it is often already built into the system, for LG you may need to launch the application Screen Share, and for Sony (Android TV) - enable the mode in the network settings.
☑️ Check before connection
On a computer, the connection process is carried out through the notification center or the settings menu. Press the key combination Win + Kto open the Connection panel, where the system will begin searching for available displays.
Once your TV is found in the list, click its name. A connection confirmation prompt may appear on the TV screen, which you'll need to accept using your remote control. Once the connection is established, your Windows 11 desktop image will appear on the big screen.
⚠️ Attention: When using Miracast, you may experience a slight mouse cursor lag, which is normal for wireless video compression protocols. This method is not suitable for gaming.
Projection mode control is available through the menu Project, where you can choose to extend the screen, mirror it, or use the TV as a second monitor. This allows you to work on your computer while playing a video on your TV.
Streaming media files via DLNA and Stream
If your goal is not to duplicate the desktop, but to play video files stored on your hard drive, it is better to use the technology DLNAIn Windows 11, this feature is implemented through the "Cast to Device" mechanism, which allows content to be streamed directly to the TV's renderer.
To get started, make sure the "Private Network" profile is selected in your network settings, as Windows blocks device discovery in "Public" mode. Open the video file (for example, using the standard Movies & TV player or File Explorer), right-click, and select "Shared Networks." Transfer to device.
| Parameter | Description | Recommendation |
|---|---|---|
| Protocol | DLNA / UPnP | Standard for media files |
| Video codec | H.264, H.265 (HEVC) | Check TV support |
| Audio format | AAC, MP3, AC3 | For sound compatibility |
| Container | MP4, MKV, AVI | MP4 is the most versatile |
The system will send the file to the TV, which will begin buffering and playing it. In this mode, the computer acts as a server, and you can control playback (pause, rewind) directly from the PC or TV remote.
Problems with codecs
If your TV displays "format not supported," it means the built-in TV decoder can't handle the specific codec or file bitrate. In this case, use a third-party media player on your PC with streaming capabilities that can transcode the stream on the fly, or install a player app on your TV, such as VLC or MX Player.
It's important to note that when streaming via DLNA, subtitles may not display or may require separate configuration in the player. Subtitle formats SRT And ASS are not supported equally well by all TVs.
Broadcasting via Google Chrome and Edge browsers
Modern web browsers have built-in Chromecast functionality, allowing you to cast the contents of a tab or the entire screen to Chromecast-enabled TVs. Google Cast or built-in Android TVThis is a great way to display video from a website that doesn't directly support DLNA.
In the browser Google Chrome you need to click on the three dots in the upper right corner, select the item Save and share (or just three dots in the menu) and then Broadcast...In the window that opens, you can select the source: a tab, the entire screen, or a file.
- 🌐 Select the target device from the list of available TVs.
- 🖥️ To broadcast your entire desktop, select the "Broadcast screen" option and select the desired window.
- 🎵 To stream only audio from your computer (for example, music from a website), select the "Stream tab" and check the "Stream system audio" box.
Browser Microsoft Edge, built on the Chromium engine, has similar functionality. Click the three dots in the menu, go to More tools and select Stream to deviceThe interface is almost identical to Chrome, which makes it easy to use.
This method is especially convenient if you don’t have a Smart TV, but you have a set-top box. Chromecast or Android BoxImage quality depends on the stability of the Wi-Fi connection and the power of the computer's processor, as it encodes the video stream in real time.
Setting up a media server to access libraries
For users with a large collection of movies and TV series, setting up a full-fledged media server is the optimal solution. Windows 11 allows you to share folders containing media files so that the TV sees them as part of its file system.
Go to Parameters → Network and Internet → Additional network settings → All networksFind the "Media Stream" section and click "Enable Media Stream." The system will prompt you to name the computer and allow access for discovered devices.
⚠️ Attention: When enabling the media server, make sure that your antivirus or Windows Firewall is not blocking incoming connections for the Windows Media Server application.
After setting up your TV, your computer will appear in the Input menu. Once you log in, you'll see your shared folders. TVs with Smart TV usually have a built-in media player that can sort files by cover and description.
For more advanced library management, you can use third-party software, such as: Plex or JellyfinThese programs are installed on your PC and automatically download metadata, posters, and descriptions for your files, creating a beautiful interface similar to an online cinema.
Quality solution and optimization
Even with proper setup, users may experience image quality issues or connection drops. The main cause of unstable performance is often radio channel congestion or insufficient Wi-Fi speed.
If the video is slow or breaks up into squares, try switching your router to a different range. 5 GHzThis range is less congested with neighboring networks and provides the higher throughput needed for HD and 4K content.
netsh wlan show interfacesRunning this command in the command line (cmd) will show your current connection speed and signal quality. If the speed is below 20-30 Mbps, stable, high-quality streaming is impossible.
- 📉 Update your Wi-Fi adapter drivers through Device Manager or the manufacturer's website.
- 🔄 Restart your router and TV to clear the network connection cache.
- 📡 Place your computer and router closer to each other or use a wired connection for your PC if possible.
It's also worth checking whether AP Isolation mode is enabled on your router, which prevents devices within the network from seeing each other. This mode is often enabled by default on guest networks.
Frequently Asked Questions (FAQ)
Why doesn't the TV see the computer in the list of devices?
Most likely, the devices are on different networks (for example, one is connected to 2.4 GHz, the other to 5 GHz but with an isolated band, or one is on guest Wi-Fi). Also, check that the "Private" network profile is selected in Windows settings, not "Public."
Is it possible to stream audio only to the TV, leaving the image on the PC?
Yes, in Windows 11, click the speaker icon in the system tray, select the arrow next to the volume slider, and select your TV from the list of audio output devices. The image will remain on the monitor.
There's a delay in sound when streaming via Miracast. What should I do?
Audio lag (desync) is a common issue with wireless transmission. Try finding the "Audio Delay" setting in your TV settings and adjusting it. Updating your Wi-Fi drivers may also help.
Does my old non-Smart TV support streaming?
By itself, no. You'll need to purchase an external set-top box, for example, Chromecast, Apple TV, Amazon Fire Stick or Android Box, which connects via HDMI and adds signal reception functionality.