Windows 🟡 Intermediate

How to Cast to an External Display from Windows 11

Richard
Written by
Richard
May 24, 2026 5 min read

Ever feel like your Windows 11 laptop screen is a little too small? Need more space for work, a bigger screen for movies, or a presentation without squinting? You’ve got options! Windows 11 makes connecting to another screen without wires a breeze. It’s similar to how you might cast your phone’s screen, but for your whole computer!

We’ll show you how to get your Windows 11 computer to talk to a TV, projector, or another screen that can receive a wireless signal. No cables needed!

Step 1: Get Your External Display Ready

Before you can send your Windows 11 screen to a larger display, you need to make sure that display is ready to receive it. This step is important!

Action: Turn on your external display (like your TV or projector). If you’re using a special device called a Miracast dongle or adapter (this plugs into your TV’s HDMI port to add wireless display features), make sure it’s plugged in and turned on too.

Why? Miracast is the technology Windows uses to send your screen signal wirelessly. Your TV or projector needs to be on and looking for a Miracast connection. If you’re using an adapter, it’s the receiver for your PC’s signal, so it must be connected and active.

Tip: Some TVs have different ways to select inputs. You might need to switch your TV to “Screen Mirroring,” “Miracast,” or “Wireless Display” mode so your PC can find it. Check your TV’s manual if you’re not sure.

Step 2: Tell 🪟 Windows 11 to Look for Displays

Now that your external display is on and ready, you need to tell your Windows 11 computer to start looking for available screens. Windows has a quick way to do this.

Action: Press the Windows logo key (the key with four squares) and the K key on your keyboard at the same time. This opens the “Cast” or “Connect” panel.

Why? This keyboard shortcut is your fast track to wireless display connections in Windows. It quickly shows you a list of devices your computer can connect to wirelessly to show its screen. It’s designed for speed and ease of use.

Warning: Make sure your computer’s Wi-Fi is turned on! Wireless projection needs a Wi-Fi connection, even if the devices aren’t connected to the internet. You can check your Wi-Fi status by clicking the network icon near the clock in your system tray.

Step 3: Select Your Display and Connect

The “Cast” panel should now show you a list of devices that are available. This is where you choose your TV or projector.

Action: Look at the list of devices in the panel that appeared. Click on the name of the TV, projector, or Miracast adapter you want to connect to.

Why? Windows searches your local network for devices that support Miracast. When it finds them, it lists them so you can pick the one you want to use. If there are multiple wireless displays nearby, you will see all of them here.

Tip: If your display doesn’t show up, check again that it’s powered on and set to the correct input mode (like in Step 1). Also, make sure your computer is close enough to the display for a good Wi-Fi signal.

Step 4: Follow Any On-Screen Prompts

Depending on your TV or display, you might need to confirm that you want to connect. This is a safety step to stop others from casting to your screen without permission.

Action: Watch your external display. You might see a message asking you to allow the connection from your computer. If you do, follow the instructions on the TV or projector screen to accept it.

Why? Some devices need you to give permission before they will show your computer’s screen. This is good because it means someone can’t just start showing things on your TV without you knowing.

Tip: If you’re using a projector for a presentation, make sure to accept the connection quickly before your audience gets impatient!

Step 5: Choose How You Want to Display

Once connected, your external display will probably show the exact same thing as your laptop screen. But what if you want to do something different? Windows 11 offers ways to control how your screens work together.

Action: Press the Windows logo key + P. This opens the “Project” menu, which shows different display modes.

Why? This shortcut helps you manage how your computer handles multiple screens. Here are the common options:

  • PC screen only: This turns off the external display, showing everything only on your laptop. This is useful if you accidentally connected to the wrong screen.
  • Duplicate: This shows the exact same content on both your laptop screen and the external display. It’s perfect for presentations where you want everyone to see what you’re doing.
  • Extend: This gives you more space! Your computer’s desktop will spread across both screens, giving you more room to work. You can drag windows from one screen to the other.
  • Second screen only: This turns off your laptop screen and shows everything only on the external display. This is great if you want to focus on the big screen and save your laptop’s battery.

Tip: For the “Extend” mode, you can even set up where the external monitor appears compared to your laptop screen in your PC’s Settings, under System and then Display. Just drag the display boxes to match how they are physically arranged.

Summary

Connecting your Windows 11 computer to an external display wirelessly is a breeze. First, ensure your external display and any necessary adapter are powered on and ready. Then, use the Windows key + K shortcut to open the Cast panel and select your display. You may need to confirm the connection on the external screen. Finally, use the Windows key + P shortcut to choose how you want your screens to work together, whether duplicating, extending, or using only one screen. This lets you expand your workspace or share content on a larger screen without dealing with cables.

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