How to Use spacedesk as a Second Screen: Windows and Android Setup

In this guide, I'll show you how to use spacedesk to turn your Android phone into a second monitor for your Windows PC. We'll cover the basics from installing the software to connecting either over Wi‑Fi or using USB tethering.

What Is spacedesk?

spacedesk is a free program that lets you use your mobile device, tablet, or another PC as an extra display. It has two parts:

• Windows PC: Runs the spacedesk DRIVER software (the display server).

• Android Device: Uses the spacedesk VIEWER app to show your Windows screen as an extended or mirrored display.

Setting Up spacedesk on Your Windows PC

1. Download and Install:

   • Go to spacedesk.net/download and download the Windows 10/11 64-bit version (if your PC is 64-bit).

   • Run the installer and follow the on-screen instructions. You might need to allow a firewall exception.

2. Configure Display Settings:

   • Right-click your desktop and select Display settings.

   • Choose if you want to duplicate your screen (mirror) or extend your desktop.

   • Drag the virtual screens to match your physical layout.

Installing spacedesk on Your Android Device

1. Install the App:

   • Open the Google Play Store and search for “spacedesk”. Install the app.

   • Note: spacedesk works on Android 4.1 and later.

2. Connect via Wi‑Fi:

   • Make sure your PC and Android phone are on the same Wi‑Fi network.

   • Open the spacedesk app; it will look for your PC.

   • Tap your PC’s name when it appears, and your Windows screen will be displayed on your phone.

3. Connect via USB Tethering (Optional):

   • Plug your Android into your PC with a USB cable.

   • Enable USB tethering on your Android (find this option under Settings > Connections or Mobile Hotspot and Tethering).

   • Open spacedesk on your phone and select your PC. USB tethering may offer a more stable connection.

Troubleshooting Tips

• Firewall Issues: If your Android can’t find your PC, check that spacedeskService.exe is allowed through your firewall.

• Connection Drops: Restart the spacedesk service on your PC if the connection is unstable.

• Display Lag: Lower the resolution or color depth in the spacedesk app. Switching to USB tethering can also help reduce lag.

Conclusion

spacedesk offers a straightforward way to add an extra screen to your Windows PC using your Android device. Whether you’re at home or on the go, this method is a cost-effective solution for boosting your productivity.

Feel free to share your setup or any tips in the comments!