You can connect a Windows PC to a monitor wirelessly if both ends support a compatible display method. Use built-in Miracast or a suitable receiver, or a wireless HDMI kit. The monitor still needs power; an ordinary monitor does not become wireless just because your PC has Wi-Fi.
Can I connect without a cable or an extra device?
Only when the display already has the right wireless receiver built in. If it has only HDMI, DisplayPort or VGA inputs, you need compatible receiving hardware. Connecting both devices to the same router does not add that hardware.
| Method | What you need | Check before using it |
|---|---|---|
| Miracast | A compatible Windows PC and Miracast display or adapter. | Wi-Fi, drivers, display support and supported modes. |
| Wireless HDMI | A matched transmitter and receiver, suitable video ports and power. | Resolution, refresh rate, delay, range and whether the PC can use it as another display. |
| App-based casting | An app and receiving device that work together. | It may only send a video or mirror a screen, rather than extend Windows. |
Connect through Miracast in Windows
- Turn on the display or receiver and put it in its wireless-display connection mode.
- Enable Wi-Fi on the PC.
- Press Windows + K and choose the available display.
- Accept a pairing prompt if the devices show one.
- After connection, use Windows + P to choose the supported display mode.
Microsoft’s wireless-display guide explains support and driver checks. If Windows says the PC does not support Miracast, joining the same Wi-Fi network will not fix that by itself.
How to extend the desktop instead of showing the same picture
Duplicate shows the same content on both screens. Extend gives you extra desktop space, so you can move a window onto the second display.
After connecting a compatible display, press Windows + P → Extend. Then open Settings → System → Display to arrange the screens and choose available resolution settings. See Microsoft’s multiple-monitor instructions.
Use wireless HDMI with an ordinary monitor
A wireless HDMI kit sends the video between a transmitter and receiver. A short connection is still needed at each end, and the units may need their own power. Read the exact kit’s specifications before buying; its advertised maximum range may not match a room with walls and interference.
For older displays, check the input carefully. Our video-port guide explains HDMI, DisplayPort, VGA and other connections.
Will it work well for gaming or 4K video?
Wireless display is not limited to Full HD in every setup, but resolution and refresh rate depend on both devices. Microsoft‘s adapter guide includes a 4K model; that does not make every receiver support 4K.
Test the task you care about. A delay that is acceptable for a presentation may be distracting in a fast game. If the picture drops, sound lags or the desktop feels slow, check distance, interference and device limits before changing more settings.
Updated October 14, 2026. Instructions and available features can vary by device, account and software version.