The fastest way to get your PC on your TV

The simplest method depends on what hardware you own. If your TV was made in the last five years, it almost certainly has built-in casting — either Miracast (Windows), AirPlay (Apple), or a proprietary system like Chromecast or Roku. Windows 10 and 11 can cast to any Miracast-compatible TV without extra software. If your TV is older or doesn't have built-in casting, a streaming device like a Chromecast, Fire Stick, or Roku plugs into an HDMI port and does the job for $25 to $50. The wired option — an HDMI cable — works on any TV and any PC, has zero lag, and costs $10 to $20.

Your choice comes down to three things: whether you want wireless or wired, whether your TV supports the standard your PC uses, and whether you need it to work every time without setup. Wireless is convenient but occasionally drops the connection. Wired never fails but ties you to a cable. This section covers what each method needs and how to set it up.

Key Takeaways

  • Windows 10 and 11 can cast to any Miracast TV wirelessly through Settings > System > Display > Connect to a wireless display, with no extra software needed.
  • If your TV doesn't have built-in casting, a Chromecast, Fire Stick, or Roku device plugged into HDMI adds wireless casting for $25 to $50.
  • An HDMI cable is the most reliable method and works on any TV and any PC, though it requires a physical connection.
  • Miracast works best on the same Wi-Fi network; if your PC and TV are on different networks or far apart, the connection will be unstable or fail.
  • Casting your whole screen is different from extending your display — casting mirrors what you see, while extending uses your TV as a second monitor.

Casting from Windows 10 or 11 to a Miracast TV

If your TV supports Miracast, Windows can find it and connect without any app or account. Open Settings, go to System, then Display. Scroll down and click "Connect to a wireless display." Windows will search for nearby devices for about 10 seconds. When your TV appears in the list, click it. The TV will show a PIN or ask you to confirm the connection — do that on the TV remote, and you're connected.

The first time you connect to a TV, Windows may take 30 to 60 seconds to establish the link. After that, reconnecting is usually faster. Your PC screen will mirror on the TV — whatever you see on your monitor appears on the television. If the connection drops, go back to Settings > Display > Connect to a wireless display and select the TV again.

Miracast works best when your PC and TV are on the same Wi-Fi network and within 30 feet of each other. If your TV is in another room or on a different network, the connection will be slow or fail. Some older routers also struggle with Miracast; if you have trouble, try moving your PC closer to the router or the TV.

Using a Chromecast, Fire Stick, or Roku to cast from Windows

If your TV doesn't have Miracast built in, a streaming device adds wireless casting. Chromecast, Amazon Fire Stick, and Roku all work with Windows PCs. Plug the device into an HDMI port on your TV, connect it to your Wi-Fi network, and then read the casting app on your PC — Google Home for Chromecast, Alexa app for Fire Stick, or the Roku app for Roku.

Once the app is installed and your device is on the same Wi-Fi as your PC, open the app and look for a "Cast" or "Screen Mirroring" button. Click it, select your TV device from the list, and your screen will appear on the television. The setup takes about five minutes the first time; after that, casting is usually one click.

These devices are more forgiving than Miracast if your Wi-Fi is weak or your PC is far from the TV. They also let you cast individual apps — for example, you can cast just your web browser or a video player instead of your whole screen. Chromecast and Fire Stick cost $25 to $40; Roku devices range from $30 to $100 depending on the model.

Connecting with an HDMI cable

An HDMI cable is the most reliable method and works on any TV and any PC made in the last 10 years. Plug one end into an HDMI port on your TV and the other into an HDMI port on your PC. Your TV should detect the input automatically; if it doesn't, use the TV remote to switch to the HDMI input where you plugged in the cable.

Windows will recognize the TV as a second display. If you want to mirror your screen (show the same thing on both), right-click on your desktop, select Display Settings, scroll down to "Multiple displays," and choose "Duplicate these displays." If you want to use your TV as an extended monitor instead, choose "Extend these displays." You can also press Windows key + P to cycle through these options quickly.

HDMI cables are cheap — $10 to $20 for a good one — and they have no lag, no connection drops, and no setup beyond plugging them in. The downside is you're tethered to a cable. If your PC doesn't have an HDMI port, you can use a USB-C to HDMI adapter (around $15) or a DisplayPort adapter, depending on what ports your PC has.

Casting from a Mac to a TV

Macs use AirPlay to cast wirelessly. If your TV has AirPlay built in (most newer Samsung, LG, and Sony TVs do), click the Control Center icon in the top right of your Mac, click Screen Mirroring, and select your TV from the list. Your Mac will ask you to enter a code shown on the TV — type it in, and you're connected.

If your TV doesn't have AirPlay, use an Apple TV device (which costs $99 to $199) or an AirPlay-compatible streaming device. The process is the same: open Control Center, click Screen Mirroring, and select the device. Macs also work with HDMI cables using a USB-C to HDMI adapter, which gives you the same reliable wired option as Windows.

Troubleshooting a casting connection that won't stay on

If your connection keeps dropping, the first step is to move your PC and TV closer together and make sure they're on the same Wi-Fi network. Check that your router is not too far away — if your PC is three rooms away from the router, the signal will be weak. Restart your router by unplugging it for 30 seconds, then plugging it back in.

If the problem persists, restart your PC and your TV. Sometimes a stale connection in the TV's memory prevents a fresh link from forming. If you're using a streaming device like Chromecast or Fire Stick, unplug it for 10 seconds and plug it back in. If you're using Miracast, go back to Settings > Display > Connect to a wireless display and "forget" the TV by right-clicking it, then reconnect.

Interference from other Wi-Fi networks can also cause drops. If you live in an apartment or a dense neighborhood, your router may be fighting for space on the same channel as your neighbors' routers. Log into your router settings (usually at 192.168.1.1 in your browser) and try switching to a less crowded Wi-Fi channel — channels 1, 6, and 11 are standard for 2.4 GHz networks.

Mirroring versus extending your display

Mirroring shows the same image on your PC monitor and your TV. Everything you see on one screen appears on the other. This is what most people want for presentations or watching videos. Extending treats your TV as a second monitor — your PC's taskbar stays on your main monitor, and you can drag windows to the TV to use it as extra workspace.

To switch between them on Windows, right-click your desktop, select Display Settings, scroll to "Multiple displays," and choose "Duplicate these displays" for mirroring or "Extend these displays" for extending. You can also press Windows key + P and cycle through the options: PC screen only, Duplicate, Extend, or Second screen only. On a Mac, open System Preferences > Displays, click the Arrangement tab, and check "Mirror Displays" to mirror or uncheck it to extend.

Extending is useful if you want to keep your work on your PC monitor while displaying something else on the TV — for example, showing a video on the TV while you control playback from your PC. Mirroring is simpler for presentations because everything you do is visible to everyone watching the TV.

Frequently Asked Questions

Do I need a special TV to cast from my PC?

No. Any TV with an HDMI port works with an HDMI cable. If you want wireless casting, your TV needs either built-in Miracast (Windows), AirPlay (Mac), or Chromecast — but if it doesn't have any of those, a $25 to $50 streaming device adds wireless casting to any TV.

Why does my casting connection keep dropping?

Weak Wi-Fi is the most common cause. Move your PC and TV closer to your router, make sure they're on the same network, and restart your router. If the problem continues, try switching your router to a less crowded Wi-Fi channel or use an HDMI cable instead.

Can I cast just one app instead of my whole screen?

Yes, but only with certain devices. Chromecast, Fire Stick, and Roku let you cast individual apps like Chrome, Netflix, or YouTube. Miracast and HDMI always mirror your whole screen. Check your app — most streaming apps have a cast button built in.

What's the difference between casting and using an HDMI cable?

Casting is wireless and convenient but depends on Wi-Fi and can drop the connection. HDMI is wired, always reliable, and has no lag, but ties you to a cable. For presentations or video, either works; for gaming, HDMI is more stable.

Do I need to buy anything if my TV is new?

Probably not. Most TVs made after 2018 have Miracast or AirPlay built in. Check your TV's manual or settings to see if it supports wireless casting. If it does, you can cast for free using Windows Settings or Mac Control Center.