Keyboar dor Mouse Not Working? Easy Fixes for Common Problems

A keyboard or mouse that suddenly stops working can be frustrating, especially when you need your computer for work, school, or everyday tasks. Sometimes, the problem is as simple as a loose cable or a low battery. In other cases, outdated drivers, incorrect settings, or software glitches may be responsible.

The good news is that most keyboard and mouse problems can be fixed at home without professional assistance. In this guide, you will discover the most common causes of these issues and learn simple troubleshooting steps to get your devices working again.

1. Check the Basic Connections First

Before changing system settings or installing new software, start with the basics. A disconnected cable or an unstable USB connection can prevent your computer from recognizing a keyboard or mouse.

Try these simple solutions:

• Check whether the USB cable is securely connected to your computer.
• Unplug the device and reconnect it.
• Try another USB port, preferably one directly on the computer rather than through a USB hub.
• Inspect the cable for visible damage.
• If you use a wireless device, make sure its power switch is turned on.

If the keyboard or mouse starts working after reconnecting it, the issue was likely related to the connection.

2. Restart Your Computer

A temporary operating system glitch can cause connected devices to stop responding. Restarting your computer may resolve the issue by refreshing system processes and reconnecting hardware.

If your mouse is not working but your keyboard still responds, press Ctrl + Alt + Delete and use the available keyboard controls to access power options. On many Windows computers, you can also press Alt + F4 when the desktop is active to open the shutdown menu.

If both devices are completely unresponsive, use your computer's physical power button as a last resort. Save your work first whenever possible, because a forced shutdown can cause unsaved changes to be lost.

After restarting, check whether the keyboard and mouse function normally.

3. Replace the Batteries in Wireless Devices

Wireless keyboards and mice often stop working because their batteries are running low. Some devices may continue working intermittently before disconnecting completely.

To fix this problem:

1. Replace disposable batteries with fresh ones, or fully charge rechargeable devices.
2. Confirm that the battery is installed in the correct direction.
3. Turn the device off and back on.
4. Check whether the wireless receiver is connected properly.
5. Move the device closer to the computer to reduce potential signal interference.

If your wireless keyboard or mouse uses Bluetooth, make sure Bluetooth is enabled on your computer. You may need to reconnect or pair the device again if the connection has been lost.

4. Clean Your Keyboard and Mouse

Dust, crumbs, hair, and other debris can interfere with the normal operation of input devices. A keyboard may develop unresponsive keys, while a mouse may move unevenly or fail to register clicks.

How to clean your devices safely:

• Disconnect the keyboard or mouse before cleaning it.
• Turn off wireless devices and remove their batteries when appropriate.
• Use compressed air to remove debris from between keyboard keys.
• Wipe the exterior with a soft, lint-free cloth.
• Clean the mouse sensor gently with a dry cotton swab.
• Allow any cleaning residue or moisture to dry completely before reconnecting the device.

Avoid spraying liquid directly onto electronic components. If a keyboard has suffered a liquid spill, disconnect it immediately and avoid powering it on until it has been properly assessed and dried.

5. Update or Reinstall Device Drivers

Drivers allow your operating system to communicate with hardware. If a driver becomes corrupted, outdated, or incompatible with a system update, your keyboard or mouse may stop functioning correctly.

On Windows, you can check the device drivers through Device Manager.

Follow these steps:

1. Press Windows + X and open Device Manager.
2. Look under categories such as Keyboards, Mice and other pointing devices, or Human Interface Devices.
3. Find the device that appears to be malfunctioning.
4. Right-click the device and select Update driver.
5. Follow the instructions displayed on the screen.

If updating the driver does not help, you can consider uninstalling the affected device from Device Manager and restarting the computer. Windows will often detect the hardware and reinstall an appropriate driver automatically.

Be careful when removing devices, especially if you depend on the affected keyboard or mouse to navigate your computer. If necessary, use another working input device or Windows accessibility features first.

6. Check Keyboard and Accessibility Settings

Sometimes, a keyboard is not physically damaged at all. Incorrect settings can make it appear that certain keys are broken or that the keyboard responds unusually slowly.

On Windows, check the following settings:

• Filter Keys: This feature can ignore brief or repeated keystrokes.
• Sticky Keys: This feature changes how modifier keys such as Shift and Ctrl work.
• Keyboard layout: An incorrect layout may cause different characters to appear when you type.
• Language settings: Switching between input languages can change the expected key mappings.

To review accessibility settings, open Settings > Accessibility > Keyboard in Windows 11. The exact menu names may vary in other versions of Windows.

If your keyboard types the wrong characters, check the selected keyboard layout before assuming that the hardware is defective.

7. Fix a Mouse That Moves Erratically or Does Not Click

A mouse can appear broken even when the underlying problem is related to its sensor, surface, or configuration.

If the pointer jumps around, moves slowly, or stops unexpectedly, try these fixes:

• Use the mouse on a clean, flat surface.
• Remove dust from the optical sensor.
• Check the cable or wireless receiver.
• Replace or recharge the battery.
• Disconnect other unnecessary USB devices to test for connection issues.
• Review pointer speed and mouse settings.

In Windows, open Settings > Bluetooth & devices > Mouse to check the pointer speed and related options.

If the pointer moves correctly but the buttons do not work as expected, test the mouse on another computer. This can help determine whether the problem comes from the mouse itself or the original computer.

8. Test Different USB Ports and Devices

A faulty USB port can prevent your keyboard or mouse from working even when the devices themselves are in good condition.

Connect the affected device to another USB port. If possible, test it on a different computer as well.

You can also connect a known-working keyboard or mouse to the original computer.

These tests help narrow down the cause:

• If the device works in another port, the original port may be faulty.
• If it works on another computer, the original computer's settings, drivers, or hardware may be responsible.
• If multiple known-working devices fail on the same computer, the problem may involve the USB controller, operating system, or another system-level issue.
• If the device fails on multiple computers, the device itself may be damaged.

Testing one component at a time is usually more effective than changing several settings at once.

9. Check for Recent Software or System Updates

Keyboard and mouse problems sometimes appear after a Windows update, a new application installation, or a change in system configuration.

Think about when the problem started. Did the device stop working immediately after an update or software installation?

If so, consider these steps:

1. Restart the computer and check whether the problem remains.
2. Install any available corrective updates through Windows Update.
3. Review Device Manager for driver errors.
4. If the issue began after a specific driver update, consider rolling back that driver when the option is available.
5. Use System Restore only if other troubleshooting methods fail and a suitable restore point exists.

Avoid downloading drivers from unfamiliar websites. Use Windows Update or the computer manufacturer's official support website to reduce the risk of installing unsafe or incompatible software.

10. What If the Keyboard and Mouse Stop Working Before Windows Starts?

If neither device responds during startup, the problem may be related to hardware, firmware settings, USB connectivity, or the operating system.

Start by disconnecting unnecessary peripherals and connecting a basic wired keyboard directly to another USB port. If available, test the keyboard and mouse on another computer.

If a keyboard works in the computer's firmware setup screen but stops working once Windows loads, a Windows configuration or driver issue becomes more likely. If it fails even before the operating system starts, hardware or firmware compatibility may need closer investigation.

Some computers also have firmware settings that affect USB support during startup. Change these settings only if you understand their purpose, and consult the computer manufacturer's documentation before modifying them.

If the devices remain unresponsive across different ports and startup environments, professional diagnosis may be necessary.

11. When Should You Replace Your Keyboard or Mouse?

Not every problem can be solved through troubleshooting. Physical damage, worn-out switches, broken cables, damaged connectors, and liquid exposure can permanently affect a device.

Consider replacing the device if:

• Several keys consistently fail despite cleaning and testing.
• The cable or USB connector is visibly damaged.
• The mouse sensor or buttons fail on multiple computers.
• A wireless device cannot maintain a connection despite fresh batteries and proper pairing.
• The device has suffered significant liquid damage.
• Repeated troubleshooting produces no improvement.

Before purchasing a replacement, confirm that the issue is not caused by the computer's USB ports, Bluetooth connection, or operating system.

A basic wired keyboard or mouse can also be useful as a temporary backup while diagnosing the original device.

Frequently Asked Questions

Why is my keyboard working but my mouse is not?

The mouse may have a depleted battery, a damaged cable, a dirty sensor, a faulty USB port, or an incorrect setting. Try another port or surface, recharge the device, and test it on another computer.

Why are both my keyboard and mouse not working?

Possible causes include a temporary system freeze, USB connectivity problems, driver issues, or a hardware fault. Restart the computer if possible, reconnect the devices, and test different USB ports.

Can a Windows update cause keyboard or mouse problems?

Yes. An update may introduce a driver compatibility issue or change system behavior. Checking for corrective updates and reviewing device drivers can help resolve the problem.

How can I restart my computer without a working mouse?

If your keyboard works, use keyboard shortcuts to access the Windows security or shutdown menus. If both devices are unresponsive, use the physical power button only when necessary, since a forced shutdown may cause data loss.

Should I reinstall Windows if my keyboard and mouse stop working?

Reinstalling Windows should not be your first option. Check connections, batteries, USB ports, accessibility settings, and drivers before considering major operating system repairs. Back up important files before attempting any reset or reinstallation.

Final Thoughts

A keyboard or mouse that stops working does not always mean that the device is broken. In many cases, the solution involves reconnecting a cable, replacing a battery, cleaning a sensor, restarting the computer, or correcting a driver or settings issue.

The best approach is to troubleshoot methodically. Start with simple checks, test different ports and devices, and make one change at a time. If the problem persists across multiple computers or involves visible physical damage, replacing the device or seeking professional assistance may be the most practical solution.

With these straightforward fixes, you can identify many common keyboard and mouse problems and get back to using your computer with less frustration.