4 PCs, 1 Mouse: PowerToys Mouse Without Borders
PowerToys Mouse Without Borders lets you control up to 4 different Windows PCs using just one mouse and keyboard. This free Microsoft tool acts like a software KVM switch, meaning your cursor moves smoothly from one screen to the next as if all the computers are part of a single giant desktop.
You can drag and drop files between machines or copy and paste text from one computer to another in a split second. The setup works great whether you mix Windows 11 and Windows 10 devices, and it cleans up desk clutter instantly.
To control multiple PCs with one mouse and keyboard, install PowerToys, enable Mouse Without Borders in its settings, and apply it as a service. Generate a security key on your primary PC, then enter it and the primary PC’s name on your secondary machines to connect them.
Prerequisites for Setup
Before starting, ensure all computers meet a few basic requirements.
- All machines must be on the same local network (Wi-Fi or Ethernet).
- All machines must run Windows 10 or Windows 11.
- PowerToys must be installed on every machine.
- Firewall settings must allow PowerToys to communicate over the network.
How to Set Up Mouse Without Borders
Step 1Install PowerToys
First, download and install the latest version of the PowerToys utility. PowerToys provides the framework for controlling multiple computers with a single mouse, allowing the sharing of cursors and clipboards between up to 4 PCs.
Step 2Enable the Service (Admin Privilege Required)
Maintaining a stable connection, even at the Windows login screen, requires running the service in System Mode (operating at a deeper system level). [Admin Privilege Required] Open PowerToys Settings, head to Mouse Without Borders, and click ‘Apply as Service’. Administrator permissions are required for this step.
Step 3Generate a Security Key
On your primary computer, select the "New Key" option. This action generates a unique, encrypted string. The encrypted string is essential for securely pairing your computer with other devices, ensuring a protected connection between them for Mouse Without Borders.
Step 4Connect Additional Computers
On your secondary computer, enter the security key and the computer name of your primary machine. Click Connect. Repeat this process for all other devices.
Step 5Arrange Your Layout
Use the Device Layout tab to drag your computers into the correct order. If your monitor sits physically to the left, drag that icon to the left in the settings menu.
Advanced Features: Clipboard and File Transfer
Mouse Without Borders supports clipboard synchronization, allowing text copying on one PC and pasting on another. Dragging and dropping files between machines also works. Note that very large files may encounter limitations from network speed and latency.
Troubleshooting and Known Issues
PowerToys Mouse Without Borders requires all connected PCs to share the same local network. Check that your Windows Firewall (version 10.0.19041.1) isn't blocking the application. Switching to a wired Ethernet connection can also resolve sudden performance dips.
- Ensure all devices are on the same subnet.
- Check your Windows Firewall to ensure PowerToys is allowed through the network.
- If you experience lag, try connecting via Ethernet instead of Wi-Fi.
- For advanced issues, refer to the official Microsoft Learn documentation.
Summary
PowerToys Mouse Without Borders lets users operate one mouse and keyboard across multiple PCs, enabling seamless text copying or file dragging once devices share the same local network.
Does Mouse Without Borders work over Wi-Fi?
Yes, it operates over Wi-Fi. However, achieving the best performance and lowest latency requires a wired Ethernet connection. Wi-Fi can sometimes cause lag or connection drops if the signal weakens or heavy network traffic hits your local router.
Can I transfer files between computers using Mouse Without Borders?
Yes, transferring files works by dragging and dropping them from one desktop to another. This built-in software feature enhances productivity. Keep in mind that transferring extremely large files might take longer depending on network speed.
Is Mouse Without Borders secure?
Yes, AES encryption protects the connection. Generating a security key ensures that only computers possessing that specific key can connect to your network. Always keep your security key private and withhold it from unauthorized users.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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