How to Screen Mirror Windows 11 to Roku — A Step-by-Step Guide

By / September 26, 2025

Summary of Key Takeaways

  • ✅ Windows 11 has built-in screen mirroring (Wireless Display) support.

  • ✅ Roku devices support Miracast, making them compatible for casting/mirroring.

  • ✅ You can mirror your entire PC screen or cast specific apps like YouTube or Netflix.

  • ✅ Troubleshooting common issues (Wi-Fi, drivers, permissions) ensures smooth mirroring.

  • ✅ This guide covers setup, step-by-step instructions, and fixes for common problems.

Why Screen Mirror Windows 11 to Roku?

Ever wished you could turn your living room TV into a giant monitor for your laptop? With Windows 11 screen mirroring to Roku, you can. Whether you want to stream Netflix, share a PowerPoint presentation, or play PC games on a bigger screen, Roku makes it possible without extra hardware.

But how exactly do you set it up? Is it complicated? Don’t worry — we’ll walk you through a step-by-step guide so you can enjoy seamless mirroring in minutes.

What Is Screen Mirroring?

Screen mirroring is a technology that allows you to project your PC’s display onto your TV wirelessly. Instead of connecting HDMI cables, you simply use your Wi-Fi network.

  • Mirroring vs. Casting

    • Mirroring shows your entire PC screen (desktop, apps, browser).

    • Casting only streams supported apps (like YouTube or Netflix).

Why Use Roku for Screen Mirroring?

Roku isn’t just for streaming shows. It also works as a wireless display receiver. Here’s why it’s a great choice:

  • 🔹 No cables required — just Wi-Fi.

  • 🔹 Miracast support — built into most Roku devices.

  • 🔹 Compatible with Windows 11 out of the box.

  • 🔹 Affordable & accessible — most people already own a Roku.

Requirements Before You Begin

Before jumping into the steps, make sure you’ve got the basics covered:

Requirement Details
Windows 11 PC Must support Miracast (most modern laptops/PCs do).
Roku device Roku Streaming Stick, Roku Ultra, Roku Express, Roku TV.
Wi-Fi network Both devices must be connected to the same Wi-Fi.
Updated software Update both Windows 11 and Roku OS for compatibility.

Step 1: Check if Your Roku Supports Screen Mirroring

Most Roku devices support screen mirroring, but it’s always good to confirm:

  1. On your Roku remote, press Home.

  2. Go to Settings > System > Screen mirroring.

  3. Make sure Screen Mirroring Mode is set to Prompt or Always allow.

👉 If you don’t see this option, your Roku model may not support mirroring.

Step 2: Enable Wireless Display on Windows 11

By default, Windows 11 supports Miracast, but you may need to enable Wireless Display:

  1. Open Settings (Win + I).

  2. Go to Apps > Optional features.

  3. Click Add a feature.

  4. Search for Wireless Display and install it.

Step 3: Connect Windows 11 to Roku (Screen Mirroring)

Now, let’s mirror your screen:

  1. On your keyboard, press Win + K.

  2. A side panel will open called Cast.

  3. Select your Roku device from the list.

  4. Accept the connection request on your Roku TV.

  5. Your PC screen should now appear on your TV! 🎉

Step 4: Adjust Projection Settings

Windows 11 gives you multiple display modes:

  • Duplicate — Show the same screen on PC and TV.

  • Extend — Use your TV as a second monitor.

  • Second screen only — Show only on Roku/TV.

👉 Press Win + P to toggle between modes.

Step 5: Cast Specific Apps Instead of Full Screen

Don’t want to mirror your whole desktop? You can cast just one app:

  • Open Microsoft Edge or Chrome.

  • Click the three-dot menu > Cast.

  • Select your Roku device.

  • Only that browser tab or app will display on Roku.

Common Issues & How to Fix Them

1. Roku Not Showing Up in Cast List

  • Ensure both devices are on the same Wi-Fi.

  • Restart both your Roku and PC.

  • Reinstall the Wireless Display feature on Windows.

2. Connection Fails or Lags

  • Reduce distance between Roku and router.

  • Switch to 5GHz Wi-Fi if available.

  • Close unnecessary apps on PC.

3. Audio Not Playing on TV

  • Right-click the speaker icon in Windows.

  • Select Playback devices.

  • Choose Roku / Wireless Display as the default.

Tips for the Best Screen Mirroring Experience

  • ✅ Use Ethernet on Roku (if supported) for stable streaming.

  • ✅ Keep drivers updated on Windows 11.

  • ✅ Use Extend mode for multitasking while streaming.

  • ✅ If gaming, reduce PC resolution for smoother playback.

Advanced: Mirror Without Wi-Fi (HDMI Alternative)

If Wi-Fi isn’t stable, you can use a direct HDMI connection from your PC to TV. This bypasses Roku but ensures lag-free playback — useful for gaming or 4K videos.

Safety & Privacy Considerations

When screen mirroring:

  • Be cautious when enabling Always allow — anyone on your network can connect.

  • Use Prompt mode for more control.

  • Disconnect manually after use to save power.

Conclusion: Enjoy Big-Screen Magic with Roku

Now you know how to screen mirror Windows 11 to Roku step by step. From checking compatibility to fixing audio issues, this guide covered everything you need to start sharing your PC on the big screen.

So go ahead — play movies, stream YouTube, or present slides in style. With just a few clicks, your Roku turns into a powerful wireless display.

FAQs

1. Can all Windows 11 PCs mirror to Roku?
Not all. Your PC must support Miracast. Most modern laptops do, but older desktops may need Wi-Fi adapters.

2. Do I need an app to mirror Windows 11 to Roku?
No app required. Windows 11 has built-in casting support.

3. Why is my Roku lagging when mirroring?
This usually happens due to weak Wi-Fi. Try moving closer to the router or using 5GHz Wi-Fi.

4. Can I mirror without internet?
Yes, but both devices still need to connect to the same local Wi-Fi (router). No active internet is required.

5. Is mirroring better than casting?
It depends. Mirroring shows everything (good for presentations/gaming). Casting streams only supported apps (better for movies/shows).

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