If your mouse is not working on your PC, the problem can come from the USB connection, wireless receiver, battery, driver, Windows settings, mouse hardware, or even the surface you’re using.
The fastest way to troubleshoot the problem is to identify whether the computer is receiving any mouse input at all.
Start with the Mouse Diagnostic Test to check the main mouse functions in your browser. Then use the specific test that matches the problem, such as the Mouse Button Test or Scroll Wheel Test.
Quick Answer: Why Is My Mouse Not Working?
A mouse may stop working because of:
- A loose or faulty USB connection
- A wireless receiver problem
- A low or dead battery
- Bluetooth connection issues
- Mouse driver problems
- Incorrect mouse settings
- A damaged cable
- A faulty mouse switch or sensor
- USB port problems
- Software or application conflicts
If the mouse does not respond anywhere on the computer, start with the physical connection. If it works in some applications but not others, investigate the application or software settings first.
How to Fix a Mouse That Is Not Working
Follow these troubleshooting steps in order. Starting with simple connection checks can save time before you investigate drivers or hardware.
1. Check the Mouse Connection
For a wired mouse, make sure the USB connector is completely inserted.
If the mouse has a removable cable, check both ends of the connection.
For a wireless mouse, check that the USB receiver is connected correctly and that the mouse is switched on.
Then move the mouse and see whether the pointer responds.
2. Try Another USB Port
If you are using a wired mouse or wireless USB receiver, try another USB port.
This helps determine whether the problem is related to the current port.
Avoid changing several things at once. Test the mouse after moving it to another port so you can compare the behavior.
3. Check the Wireless Mouse Battery
If you have a wireless mouse, check its battery.
A low battery can cause intermittent behavior, delayed input, or complete loss of connection.
Replace or recharge the battery according to the mouse design.
After doing so, reconnect the mouse and test it again.
4. Reconnect the Wireless Receiver
A wireless mouse may stop responding if its receiver is disconnected or the connection becomes unstable.
Try:
- Disconnecting the receiver.
- Waiting briefly.
- Connecting it again.
- Turning the mouse off and back on.
- Moving the mouse close to the receiver.
- Testing the pointer again.
If the mouse starts working after reconnecting the receiver, the problem may have been connection-related rather than a failed mouse.
Mouse Is Plugged In but Not Working
If your mouse is plugged in but not working, don’t automatically assume the mouse itself is broken.
Try the following:
- Use another USB port.
- Disconnect and reconnect the mouse.
- Restart the computer.
- Check whether the mouse has visible power indicators.
- Test another mouse on the same computer.
- Test your mouse on another computer if possible.
This comparison is particularly useful.
If another mouse works on the same PC
The original mouse or its connection is more likely to be responsible.
If multiple mice fail on the same PC
The problem may be related to the computer, USB ports, drivers, settings, or operating system.
Why Does My Mouse Stop Working?
A mouse can stop working for different reasons depending on how the failure occurs.
Completely stopped
Possible causes include:
- Dead battery
- Disconnected USB cable
- Faulty USB port
- Wireless receiver problem
- Hardware failure
Works intermittently
Possible causes include:
- Loose connection
- Wireless interference
- Low battery
- Damaged cable
- USB connection problems
Buttons don’t work but cursor moves
Possible causes include:
- Mouse switch problems
- Button configuration
- Software issues
- Hardware failure
Test the buttons with the Mouse Button Test.
Cursor moves but scrolling doesn’t work
Use the Scroll Wheel Test to determine whether the browser is receiving wheel input.
How to Check If Your Mouse Is Working Properly
A mouse has several separate functions, so testing only cursor movement doesn’t tell you whether every part of the device is working.
A basic diagnostic check should include:
- Cursor movement
- Left click
- Right click
- Middle click
- Scroll wheel
- Additional mouse buttons
- Dragging
- Input responsiveness
You can test these functions individually with the MouseDiag tools.
Mouse Diagnostic Test
Start with the Mouse Diagnostic Test for a broader check.
Mouse Movement
Use the Mouse Movement Test to observe pointer movement and browser-reported movement data.
Mouse Buttons
Use the Mouse Button Test to check button input.
Right Click
Use the Right Click Test if the right mouse button is the problem.
Scroll Wheel
Use the Scroll Wheel Test if scrolling is not working correctly.
Mouse Works but Cursor Does Not Move
If the mouse appears connected but the cursor doesn’t move, several things can be responsible.
First, check the physical connection.
Then try another USB port or reconnect the wireless receiver.
If possible, test another mouse on the same computer.
You should also test your original mouse on another computer.
This creates a useful diagnostic comparison:
Mouse fails on multiple computers → mouse hardware becomes more likely.
Mouse works on another computer → investigate the original computer, its settings, drivers, or connection.
Mouse Buttons Are Not Working
If the cursor moves normally but clicking doesn’t work, the problem may be limited to the mouse buttons.
Start with the Mouse Button Test.
Test each available button separately.
If only one button fails while the others work normally, the problem may be localized to that button.
For example:
- Left button fails → test the left switch.
- Right button fails → use the Right Click Test.
- Middle button fails → test the middle-button input.
- Side button fails → check whether the mouse software recognizes the additional button.
Mouse Is Not Clicking Correctly
A mouse that clicks incorrectly may have a different problem from a mouse that does not work at all.
Possible symptoms include:
- Single clicks becoming double clicks
- Clicks not registering
- Right click not responding
- Buttons activating intermittently
- Dragging stopping unexpectedly
If one physical click sometimes produces two clicks, read our guide:
Why Is My Mouse Double Clicking? Causes & Fixes
You can also use the Double Click Test to check for unwanted double-click behavior.
Mouse Scroll Is Not Working
If the cursor moves and buttons work but the wheel does not scroll, the issue may be limited to the scroll input.
Try:
- Moving the wheel slowly.
- Scrolling in another application.
- Reconnecting the mouse.
- Trying another USB port if applicable.
- Testing the wheel in the Scroll Wheel Test.
If the scroll wheel works in the browser but not in one application, check that application’s settings before assuming the mouse hardware is defective.
For a detailed troubleshooting guide, see:
Mouse Scroll Not Working? Causes & Fixes
Wireless Mouse Not Working
Wireless mice have additional components that wired mice don’t require.
Check:
- Mouse power switch
- Battery level
- USB receiver
- Bluetooth connection
- Receiver placement
- Wireless connection stability
If the mouse has both Bluetooth and a USB receiver option, testing the other connection method can help isolate the problem.
For a USB receiver mouse, reconnect the receiver and test again.
For Bluetooth mice, remove and reconnect the device through the computer’s Bluetooth settings if necessary.
Wired Mouse Not Working
For a wired mouse, start with the simplest checks.
Check the cable
Look for obvious cable damage or unusual bending.
Try another USB port
This helps determine whether the original port is causing the problem.
Test another computer
If the mouse fails on another computer as well, the mouse or cable becomes a stronger suspect.
Test another mouse
If another mouse works normally on the same PC, the problem is more likely to be specific to the original device.
Mouse Not Working After Connecting to a PC
If the mouse worked previously but stopped after connecting it to a computer, check whether the computer recognizes the device.
Possible causes include:
- USB connection issues
- Driver problems
- Bluetooth pairing problems
- Device configuration
- Operating-system changes
- Hardware failure
Restarting the computer can also be useful because it clears some temporary software and device-state problems.
If the problem continues, compare the mouse with another computer or another mouse.
Does the Mouse Work in the Browser?
A browser-based diagnostic test can answer an important question:
Is the browser receiving mouse input?
For example, if the pointer moves normally inside the Mouse Movement Test, your browser is receiving movement events.
That does not prove that every mouse component is working, but it gives you a useful starting point.
Likewise, the button and scroll tests can show whether the browser is receiving those specific input events.
How to Find Out Whether the Mouse or PC Is the Problem
The most useful troubleshooting technique is comparison testing.
Try this simple matrix:
| Test | Result | What it suggests |
|---|---|---|
| Mouse on your PC | Doesn’t work | Could be mouse or PC |
| Another mouse on your PC | Works | Original mouse more likely |
| Your mouse on another PC | Doesn’t work | Mouse more likely |
| Your mouse on another PC | Works | Original PC more likely |
| Mouse works in browser but not one app | App-specific issue possible | Check app settings |
No single browser test can identify every hardware failure, but comparing devices and computers can significantly narrow down the cause.
Could a Mouse Driver Cause the Problem?
Yes. Software and driver problems can affect how the operating system communicates with a mouse.
If the mouse suddenly stops working after a system or software change, consider checking the computer’s device and mouse settings.
However, don’t assume that every mouse problem is a driver problem.
First rule out simple causes such as:
- USB connection
- Battery
- Wireless receiver
- USB port
- Mouse hardware
Testing the mouse on another computer is often a more useful diagnostic step than immediately changing drivers.
Why Does My Mouse Work in One App but Not Another?
If your mouse works normally in Windows and your browser but fails in a particular game or application, the mouse itself may not be the problem.
Applications can use different input systems and settings.
Check the affected application’s:
- Mouse controls
- Sensitivity
- Input mode
- Button bindings
- Raw input settings
- Accessibility options
If the mouse works normally elsewhere, investigate the application before replacing the hardware.
When Should You Replace a Mouse?
A mouse does not automatically need replacement because it stops working once.
Consider replacement or professional repair when:
- It repeatedly fails on multiple computers.
- The cable is physically damaged.
- The wireless connection consistently fails.
- A button repeatedly fails despite troubleshooting.
- The scroll wheel remains nonfunctional.
- The sensor or movement remains unreliable.
- The device has significant physical damage.
Before replacing it, perform a few controlled tests and compare the behavior on another computer when possible.
Mouse Troubleshooting Checklist
If your mouse is not working, follow this order:
Basic checks
- Check the cable.
- Check the USB connection.
- Try another USB port.
- Check the wireless battery.
- Reconnect the wireless receiver.
- Restart the computer.
Diagnostic checks
- Test cursor movement.
- Test left and right buttons.
- Test the scroll wheel.
- Test additional buttons.
- Test dragging.
- Compare the mouse with another computer.
If the problem continues
- Check mouse software.
- Review operating-system settings.
- Investigate drivers if appropriate.
- Test another mouse on the same PC.
- Consider hardware repair or replacement.
Frequently Asked Questions
Why is my mouse not working on my PC?
A mouse may not work because of a USB connection, wireless receiver, battery, Bluetooth connection, driver, software setting, USB port, or hardware problem. Start with connection and comparison tests.
Why is my mouse plugged in but not working?
Try another USB port, reconnect the mouse, restart the computer, and test another mouse on the same PC. If your mouse also fails on another computer, the mouse itself may be the problem.
Why does my computer mouse suddenly stop working?
Sudden failure can be caused by a disconnected cable, USB issue, wireless battery, receiver problem, software issue, or hardware failure. Test the mouse on another port or computer to narrow down the cause.
How do I test if my mouse is working?
Use the Mouse Diagnostic Test and then test individual functions such as movement, buttons, and scrolling with the appropriate MouseDiag tools.
How do I test my mouse buttons?
Use the Mouse Button Test to check whether individual mouse buttons are being detected by the browser.
How do I test my mouse scroll wheel?
Use the Scroll Wheel Test and scroll normally inside the test area. The tool can help determine whether wheel input is reaching the browser.
Why does my mouse work on another computer?
If the mouse works on another computer but not your main PC, the problem may be related to the original computer’s USB connection, Bluetooth, drivers, settings, or software.
Why does my mouse move but not click?
If movement works but clicking does not, the problem may be related to the mouse buttons, software, or hardware. Use the Mouse Button Test to check individual button input.
Can I test a mouse without downloading software?
Yes. Browser-based diagnostic tools can test pointer, button, clicking, and scrolling input without requiring a separate application.
Continue Testing Your Mouse
If you’re troubleshooting a specific mouse problem, use the test that matches the symptom:
- Mouse Diagnostic Test — Start with a broader mouse check.
- Mouse Movement Test — Check cursor movement and tracking.
- Mouse Button Test — Check individual buttons.
- Double Click Test — Check unwanted double-click behavior.
- Right Click Test — Test the right mouse button.
- Scroll Wheel Test — Check mouse wheel input.
- Mouse Latency Test — Investigate mouse response and latency.
- Mouse Polling Rate Test — Check mouse report frequency.
About This Guide
This guide is part of the MouseDiag mouse troubleshooting and browser-based diagnostic resources. The diagnostic tools on the site focus on the input events that a browser can observe; they do not directly inspect internal mouse electronics or replace manufacturer hardware diagnostics.
That distinction matters: a browser test can help establish whether input is reaching the webpage, while cross-device testing and physical inspection can help narrow down hardware-related problems.