How to Display Your Windows 10 Desktop on Your TV via Wi-Fi: A Complete Guide with Settings

Wirelessly stream your computer screen to a big-screen TV, opening up new possibilities: from watching high-definition movies to presentations and gaming without wires. HDMI. IN Windows 10 There are several built-in and third-party solutions for this, but not all of them work equally reliably. The main problem users have is protocol incompatibility, image delays, or no sound when transmitting over Wi-Fi.

In this article we will look at 5 proven methods desktop broadcast to TV, including Miracast, DLNA, Steam Link and specialized applications. We'll pay special attention to the settings Windows 10, requirements for TV (from Samsung to LG) and typical errors that interfere with stable operation. If your TV doesn't support modern standards, we'll find workarounds.

Before you begin, check two key points: both devices must be connected to the same Wi-Fi network (or the router supports WPS for a direct connection), and the computer has the latest drivers for the video card installed (NVIDIA, AMD or Intel). This will save you hours of searching for reasons why the screen is not duplicated.

Method 1: Miracast – built-in wireless streaming in Windows 10

Miracast — is a wireless video transmission standard supported by most modern TVs (Samsung QLED, LG OLED, Sony Bravia 2018+) and Windows 10 out of the box. The technology allows you to duplicate the screen with a resolution of up to 4K and frequency 60 Hz, but is sensitive to the quality of the Wi-Fi network. If the router operates at a frequency 2.4 GHz, delays are possible - it is better to use 5 GHz.

To start a broadcast:

• 🖥️ On your computer: click Win + K (or open Settings → System → Project to this PC). Select Connect to a wireless display.
• 📺 On the TV: activate the mode Screen Mirroring (on the menu Network → Miracast or Screen → Wireless Projection). On Samsung this can be called Smart View, on LG — Screen Share.
• 🔄 Select your TV model from the list of available devices on your PC. Confirm the connection on both devices.

Critical limitation of Miracast: If your TV was released before 2016, it may not support this protocol or may only work at 720p resolution. In this case, proceed to the next method.

⚠️ Attention: On laptops with hybrid graphics (Intel + NVIDIA/AMD) Miracast may not work if the discrete graphics card driver is not updated. Check the version in Device Manager → Display Adapters.

Method 2: DLNA – streaming media files (not desktop!)

DLNA - this is a protocol for transmission media files (videos, music, photos), but not the desktop. It is useful if you need to show a movie or presentation on TV in .pptx, but is not suitable for gaming or running programs. Most Smart TV (including models TCL, Hisense And Philips) support DLNA through applications like SmartShare (LG) or AllShare (Samsung).

How to set up:

• 📂 On PC: enable media sharing V Control Panel → Network and Internet → Network and Sharing Center → Advanced Sharing Settings. Select "Turn on media streaming".
• 🎬 On your TV: Open your DLNA app (e.g. Media Player on Sony or Photos and videos on LG). Your computer will appear in the sources.
• 🔍 Select the folder with files on your PC (for example, Video or Downloads) and play the content on TV.

⚠️ Note: If your TV doesn't see your computer in DLNA, check your firewall WindowsAdd an exception for Windows Media Player Network Sharing Service V Windows Defender Firewall → Allow communications....

3. Method: Steam Link – for gaming and low latency

If you want to play on TV from your computer, Steam Link — one of the best solutions. The application uses its own video compression technology, which reduces latency to 30–50 ms (against 100+ ms (Miracast). Resolutions up to 4K@60Hz, but a powerful PC is required (NVIDIA GTX 1050+ or AMD RX 560+) and stable Wi-Fi 5 GHz (or wired connection of TV to the router).

Setup instructions:

1. Install Steam on PC and app Steam Link on TV (available in Google Play For Android TV or App Store For Apple TV).
2. Turn on Big Picture Mode V Steam on the computer (Start → Steam → Big Picture Mode).
3. Launch it on your TV Steam Link, select your PC from the list, and connect. The first time you connect, you'll need to enter your PIN.
4. In the settings Steam Link select Optimize for speed (reduces latency) or Optimize for quality (better for movies).

Install the latest graphics card drivers | Connect your TV and PC to the same 5 GHz network | Close background programs (Torrent, updates) | Disable VPN on your PC -->

Steam Link Supports not only games but also running any programs in desktop mode. To do this, select Desktop instead of the game list. However, in this mode the delay will increase to 80–120 ms.

4. Method: Applications from TV manufacturers (Samsung DeX, LG TV Plus)

Major brands offer their own wireless streaming solutions, which are often more stable than universal protocols. For example, Samsung DeX allows you not only to duplicate the screen, but also to use the TV as a second monitor with an extended desktop. For LG there is an application LG TV Plus, and for Sony — Video & TV SideView.

Let's look at the setup using an example Samsung DeX:

• 📱 Install the application Samsung DeX on PC with Windows 10 (available in Microsoft Store).
• 📺 On TV Samsung (2017 and newer) open DeX through the menu Sources → DeX.
• 🔗 Launch it on your computer Samsung DeX, select your TV from the list and confirm the connection.

Advantage DeX - support advanced mode (TV as a second monitor), not just mirroring. Disadvantage: Only works with TVs. Samsung and requires account registration Samsung Account.

What should I do if Samsung DeX doesn't find my TV?

1. Check that the TV and PC are connected to the same Wi-Fi network (not a guest network).

2. Update your TV firmware via Settings → Support → Software Update.

3. Reboot your router - sometimes the DHCP server does not assign correct IP addresses.

4. In Windows Firewall settings, add an exception for the application Samsung DeX.

⚠️ Please note: Apps from TV manufacturers often block the broadcast of protected content (for example, Netflix or Disney+) due to DRM restrictions. In this case, the image will be black with an error. HDCP.

5. Method: third-party programs (ApowerMirror, AirParrot)

If built-in tools Windows 10 If they don't work, third-party programs come to the rescue. They support more devices, offer additional features (such as screen recording), and are often better optimized for weak Wi-Fi networks. Let's look at two popular options:

ApowerMirror (free version with watermark):

• 💻 Install the program on your PC (official website).
• 📺 Install the app on your TV ApowerMirror (available for Android TV And Samsung Tizen).
• 🔗 Launch the program on both devices, select the mode "Phone Screen" (despite the name, it also works with a PC) and connect via Wi-Fi.

AirParrot 3 (paid, $29.99):

• 🖥️ Download and install AirParrot to your computer. The program supports 4K and sound 5.1.
• 🎯 In the interface, select the TV (must support AirPlay or Miracast).
• 🔧 Adjust the stream quality in Settings → Performance (for games choose "Low Latency").

6. Troubleshooting: Why the screen isn't broadcasting

Even with the correct settings, the broadcast may not work due to hardware or software limitations. Here TOP 5 reasons and ways to eliminate them:

• 🔌 The TV does not support Miracast.: Check the model specifications on the manufacturer's website. Alternatively, use Google Chromecast or Amazon Fire TV Stick as a prefix.
• 📶 Weak Wi-Fi signalConnect your TV to your router via cable. Ethernet, and leave your PC on Wi-Fi. Or use Powerline adapters for wired connection via electrical wiring.
• 🔊 No sound during broadcast: IN Windows 10 click Win + R, enter mmsys.cpl, select the output device "TV" as the main one.
• 🔄 The screen is flickering or slowing down: Turn off background programs (especially Torrent, Discord, Skype), which occupy network bandwidth.
• 🔒 Blocked by firewall: Add exceptions for Miracast, DLNA and the program used in the firewall settings.

If none of the methods worked, check hardware compatibility:

• 🖥️ On PC: the video card must support Wi-Fi Direct (most models Intel 6th generation and newer, NVIDIA 10 series and newer).
• 📺 On TV: the firmware must be updated to the latest version (for example, for LG WebOS not lower 4.0).

FAQ: Frequently Asked Questions about Screencasting

Is it possible to stream Windows 10 screen to a TV without Wi-Fi?

Yes, but it will be required direct connection through HDMI or adapters USB-C → HDMIWireless alternatives without a router:

• Use Miracast in mode Wi-Fi Direct (if TV supports it).
• Connect via Bluetooth (for file transfer only, not screen).
• Use USB-Wi-Fi adapter to create a direct network between PC and TV.

Why is there no sound when streaming via Miracast?

Problematic for Windows 10 and is related to the output device settings. Solutions:

1. Click Win + R, enter mmsys.cpl → select a tab Playback.
2. Find the device with the name of your TV, right-click → "Use by default".
3. If the device is missing, update the sound card driver via device Manager.

If the sound still doesn't appear, try connecting via HDMI or use Steam Link.

How to reduce lag during broadcasting?

Latency depends on the transmission method and network quality. Ways to reduce lag:

• 📶 Switch to Wi-Fi 5 GHz (latency ~50 ms vs ~150 ms on 2.4 GHz).
• 🎮 Use in games Steam Link with setting Optimize for speed.
• 🖥️ Reduce the broadcast resolution to 1280×720.
• 🔌 Connect your TV to your router via cable Ethernet, and leave your PC on Wi-Fi.

The minimum delay (~30 ms) is achieved only with a wired connection of the TV to the router and using Steam Link or Moonlight (for games).

My TV doesn't support Miracast. What should I do?

Alternative options:

1. Buy an adapter: Microsoft Wireless Display Adapter (~$50) or ScreenBeam add Miracast support to any TV with HDMI.
2. Use the prefix: Google Chromecast (from $30), Amazon Fire TV Stick (from $40) or Apple TV (for Apple ecosystem).
3. DLNA for media files: If you only need video/photos, set up sharing via Plex or Kodi.
4. Wired connection: HDMI or USB-C → HDMI adapter (latency ~10 ms).

How do I mirror my laptop's screen to a TV if I don't have a Smart TV?

For a regular TV without Smart functions additional equipment will be required:

• 📺 HDMI adapter with Wi-Fi: For example, AnyCast or Miracast-dongle (connects to the port HDMI and adds support for wireless broadcasting).
• 💻 USB-Wi-Fi adapter: If the laptop has a weak Wi-Fi module, an external adapter (for example, TP-Link Archer T4U) will improve stability.
• 🔄 Router with USB: Some models (eg ASUS RT-AC86U) allow you to connect a flash drive and stream media to TV via DLNA.

The most budget-friendly solution is AnyCast (~$20), but the broadcast quality will be worse than Chromecast.