Did you know that your Windows PC and your Roku have a built-in "secret handshake" that lets you beam your entire desktop onto your TV? Whether you want to show photos to the family, give a presentation, or watch a video that doesn't have a native Roku app, screen mirroring (via Miracast) is the way to go.
1. Check Compatibility
Most Windows 10 and 11 laptops support Miracast. On your Roku, ensure that "Screen Mirroring" is enabled by going to Settings > System > Screen Mirroring. Set it to "Prompt" or "Always Allow".
2. The Windows Shortcut
On your Windows keyboard, press Windows Key + K (for 'K'ast). A sidebar will appear on the right side of your screen showing all available wireless displays and audio devices.
3. Selecting Your Roku
Your Roku device (e.g., "Roku Streaming Stick 4K") should appear in the list. Click on it. Your Roku will then show a prompt or start connecting immediately. Within a few seconds, your PC desktop will appear on the TV.
4. Projection Modes
Once connected, you can change how the screen behaves by pressing Windows Key + P:
- Duplicate: The TV shows exactly what is on your monitor.
- Extend: The TV acts as a second monitor (great for multitasking).
- Second screen only: Your laptop screen goes dark and everything moves to the TV.
5. Troubleshooting Connection Issues
If your Roku doesn't show up, ensure both your PC and Roku are on the same WiFi network. Sometimes, toggling WiFi off and on on your PC can force the list to refresh. If lag is an issue, try moving closer to your router or using a 5GHz signal for a more stable connection.
Control your casting like a pro.
While casting, use QuickRemote to adjust volume or navigate Roku menus without having to reach for a physical remote.
Get QuickRemote for Windows