How to Use Logitech Mouse on Two Computers

Juggling two computers creates desk chaos—multiple mice, tangled cables, and constant physical switching that kills your workflow. But what if your Logitech mouse could seamlessly control both systems? Whether you’re managing a work laptop beside your gaming PC or switching between Windows and Mac, you don’t need duplicate peripherals. This guide reveals exactly how to use one Logitech mouse on two computers using five proven methods that eliminate desk clutter while maintaining productivity. You’ll discover which approach works best for your setup—whether you need instant switching for presentations, cross-platform file transfers, or zero-latency control for creative work.

Most professionals waste 10-15 minutes daily just reconnecting peripherals between machines. With the right configuration, your MX Master or M720 Triathlon can become a single-point control hub. We’ll focus exclusively on solutions verified with Logitech hardware, so you avoid compatibility headaches. By the end, you’ll implement a setup where moving your mouse cursor to the screen edge instantly transitions control between computers—no button presses required.

Configure Logitech Flow for Seamless Multi-Computer Control

Logitech Flow transforms your compatible mouse into an invisible bridge between computers, allowing cursor movement and file transfers across Windows and Mac systems as if they were one workspace. Unlike basic switching methods, Flow maintains continuous control without interrupting your workflow—critical when presenting data across systems or copying design assets between machines.

Confirm Your Flow Hardware and Network Compatibility First

Before installing software, verify three non-negotiable requirements: First, your mouse must be Flow-compatible (MX Master 3S, MX Anywhere 3, or M720 Triathlon). Second, all computers must run Logitech Options+ (free download). Third, every machine must be on the same Wi-Fi network subnet—this is where 70% of setup failures occur. If your office uses separate networks for security, connect both computers to your personal hotspot as a temporary test. For Ethernet users, ensure both PCs plug into the same router, not separate switches.

Execute the Flow Setup in Under 5 Minutes

1. Install Logitech Options+ on both computers from Logitech’s official site (never third-party stores)
2. Connect your mouse to Computer A via Unifying Receiver or Bluetooth
3. Open Options+ > Click “Logitech Flow” > Select “Enable Flow”
4. On Computer B, repeat steps 2-3—this triggers automatic discovery
5. In Flow settings, drag your computer icons to match physical monitor positions (e.g., place Mac icon to the right of your PC)

When done correctly, moving your cursor to the right screen edge instantly jumps to your Mac. Test by dragging a text file from Windows to Mac—Flow handles clipboard sharing automatically. Critical tip: If cursor movement stutters, disable Windows Fast Startup (Settings > System > Power > Additional Power Settings > Choose what power buttons do > Change unavailable settings > Uncheck Fast Startup).

Switch Computers Instantly Using Multi-Device Memory Buttons

Mice like the M720 Triathlon or MX Anywhere 3S have physical buttons that toggle between pre-paired devices—ideal for quick context switching without software dependencies. This hardware-based method works even when computers are offline or on separate networks, making it perfect for presentations in conference rooms with unreliable Wi-Fi.

Pair Your Mouse to Two Systems in 90 Seconds

1. Press the device button (bottom or thumb rest) until light blinks blue for Device 1
2. Connect USB Unifying Receiver to Computer A > Wait for pairing confirmation
3. Press device button until light blinks green for Device 2
4. Enable Bluetooth on Computer B > Put mouse in pairing mode (hold button 3+ seconds)
5. Select mouse from Computer B’s Bluetooth menu

Now tap the device button to switch focus: blue = Computer A, green = Computer B. Pro warning: The keyboard won’t follow automatically—pair a multi-device keyboard like the K380 separately. For triple-computer setups (e.g., M720), repeat step 3 with red indicator for Device 3. Avoid common mistakes like pairing via Bluetooth first—always use Unifying Receiver for primary connection to prevent signal conflicts.

Connect Dual PCs with a Hardware KVM Switch

When software solutions fail or latency matters (like video editing), a physical KVM switch delivers instant, lag-free switching by rerouting USB and video signals. Unlike software methods, KVMs work with any Logitech mouse—including older models without multi-device support—and require zero configuration. A basic 2-port USB switch costs under $20, while premium KVMs handle 4K video and audio.

Install a KVM Switch in 3 Simple Steps

1. Plug USB cables from Computer A and B into KVM’s INPUT ports
2. Connect your mouse and keyboard to KVM’s OUTPUT USB ports
3. Press the KVM’s physical button (or hotkey like Scroll Lock x2) to toggle control

For setups with multiple monitors, choose a KVM with HDMI/DisplayPort passthrough. Critical consideration: Cheap USB switches often cause “ghost clicking” with high-DPI mice—test with your specific Logitech model before relying on it for critical work. If your MX Master 3S disconnects after switching, enable “USB Selective Suspend” in Windows Power Options (Control Panel > Hardware > Power Options > Change Plan Settings > Advanced > USB Settings).

Control Both Systems with Cross-Platform Software Alternatives

When Logitech Flow isn’t an option (like with non-Flow mice or mixed-brand peripherals), tools like Synergy or ShareMouse create virtual KVM functionality over your network. These work with any mouse—including older Logitech models—but require careful network configuration to avoid security risks.

Configure Synergy for Secure Cross-Computer Control

1. Download Synergy on both computers (free version supports 2 PCs)
2. Designate one as “Server” (primary machine with mouse/keyboard)
3. On Server: Open Synergy > Add Client PC’s IP address > Arrange screen layout
4. On Client: Enter Server’s IP > Start service

Unlike Flow, Synergy encrypts all traffic by default—essential for sensitive work. Troubleshooting tip: If cursor movement freezes, disable Windows Firewall temporarily to test. For Mac-to-Windows setups, install the “SynergyKM” helper tool to fix keyboard mapping issues. Avoid public networks—these tools require local network access and shouldn’t be used over the internet.

Share Your Mouse via Plug-and-Play USB Switch Hardware

For the simplest, most reliable solution without software, a USB switch physically routes your mouse signal between computers. This $15 device eliminates pairing headaches for basic setups where you only need occasional mouse sharing (e.g., a work laptop beside a home desktop).

Set Up a USB Switch in Under 60 Seconds

1. Plug Computer A’s USB cable into Switch Port 1
2. Plug Computer B’s USB cable into Switch Port 2
3. Connect mouse to Switch’s OUTPUT port
4. Press switch button to toggle control

Key advantage: Zero configuration needed—ideal for non-tech users. Critical limitation: Video and audio won’t switch, so you’ll need a separate monitor input button press. For Logitech mice using Unifying Receivers, plug the receiver into the switch—not the mouse directly—to prevent driver conflicts. If the mouse disconnects after switching, restart Logitech Options+ on the inactive computer.

Fix Logitech Mouse Sharing Connection Failures Immediately

Even perfect setups encounter issues. When your mouse stops switching between computers, these targeted fixes resolve 95% of problems without reinstalling software.

Diagnose Flow-Specific Connection Breakdowns

If cursor movement fails between Flow-linked computers: First, confirm Options+ shows “Flow Active” in system tray (Windows) or menu bar (Mac). Next, run the Flow Network Check tool (Options+ > Flow > Network Check). If it reports “Firewall blocking,” add LogiFlowService.exe as an exception in Windows Defender. For persistent disconnects, delete the Flow configuration file (C:\ProgramData\Logishrd\LogiFlow) and restart Options+—this forces a clean pairing without full reinstallation.

Resolve Bluetooth Pairing Conflicts on Multi-Device Mice

When your M720 won’t switch to Device 2: Put mouse in pairing mode > Go to Computer B’s Bluetooth settings > “Remove device” > Restart Bluetooth service > Re-pair. Critical step: For Unifying Receiver mice, unplug the receiver from Computer A before pairing to Computer B—otherwise the receiver “steals” the connection. If the device button light won’t activate, reset the mouse by holding all buttons for 10 seconds until lights flash.

Eliminate KVM/USB Switch Signal Dropouts

For intermittent mouse disconnections with hardware switches: Replace the USB cable between switch and mouse with a shielded version (common cause of 2.4GHz interference). If using a USB hub, connect the mouse directly to the switch’s dedicated port—never share ports with webcams or drives. Test with another mouse to rule out hardware failure; Logitech mice sometimes require updated firmware via Options+ when used with third-party switches.

Mastering these methods transforms your Logitech mouse into a productivity powerhouse across dual-computer setups. For most users, Logitech Flow delivers the smoothest experience when systems share a network—especially for creative professionals transferring files between Windows and Mac. If you need instant switching without network dependencies, a multi-device mouse with physical buttons (like the M720 Triathlon) provides foolproof control. Budget-conscious users should start with a $15 USB switch for basic setups where monitor sharing isn’t required. Always prioritize Flow-compatible mice for new purchases—they future-proof your setup against software limitations. Before implementing any method, verify your specific Logitech model against the compatibility list in Options+ to avoid wasted effort. Within 10 minutes, you can eliminate desk clutter and reclaim focus time previously lost to peripheral switching.