A keyboard or mouse that suddenly stops working can make even a simple computer task frustrating. You may be unable to type, click, open a program, or navigate through settings. Fortunately, many keyboard and mouse problems are caused by simple connection, battery, software, or temporary system issues.
You do not need advanced technical knowledge to try several basic troubleshooting steps. The key is to start with simple checks before making more complicated changes.
This beginner-friendly guide explains how to fix common keyboard and mouse not working issues on a desktop or laptop, with practical steps that are suitable for everyday computer users.
Check the Basic Connections First
Before changing software settings, check whether the keyboard or mouse is physically connected correctly.
For a wired device, unplug the USB cable and plug it back into the computer. If possible, try another USB port.
If you are using a wireless keyboard or mouse, check that:
- The device is switched on
- The batteries have enough charge
- The wireless receiver is connected properly
- Bluetooth is enabled when required
- The device is within a reasonable range of the computer
A loose cable or depleted battery can easily look like a more complicated computer problem.
Restart the Computer
A restart is one of the simplest troubleshooting steps, but it can resolve temporary system problems.
If the keyboard and mouse are not responding, restarting may be difficult. On a desktop computer, you can use the physical power button if necessary, but avoid repeatedly forcing the computer to shut down unless there is no other practical option.
If the keyboard or mouse works intermittently, save your work first and restart the computer normally.
After restarting, check whether both devices work again.
Test Another USB Port
If you are using a wired keyboard or mouse, the USB port itself could be causing the problem.
Disconnect the device and connect it to another USB port.
On a desktop computer, you may have several USB ports available. On a laptop, try another port if one is available.
If the device works in another port, the original port may be the source of the issue.
You can also test another compatible USB device in the same port. This can help you determine whether the problem is related to the accessory or the computer’s USB connection.
Check Wireless Batteries
Wireless keyboards and mice rely on batteries or rechargeable power.
When the battery is low, a device may stop responding, disconnect frequently, or behave unpredictably.
Replace the batteries or recharge the device according to the manufacturer’s instructions.
If your wireless accessory has a power indicator, check whether it turns on.
It is also worth checking whether the device has a physical power switch that may have been accidentally turned off.
Check Bluetooth Connections
Bluetooth keyboards and mice can occasionally disconnect from a computer.
If the device uses Bluetooth, check whether Bluetooth is enabled in your computer’s settings.
You may also need to confirm that the keyboard or mouse is still paired with the computer.
If the device appears in the Bluetooth list but does not respond, removing and pairing it again may help.
The exact steps vary between Windows, macOS, and different device models.
Check Whether the Problem Affects One or Both Devices
Pay attention to whether the keyboard, mouse, or both have stopped working.
If only the mouse has stopped working, the problem may be related to the mouse, its battery, Bluetooth connection, USB connection, or driver.
If only the keyboard is affected, focus on those same areas for the keyboard.
If both devices stop working at the same time, the issue may be related to the computer, USB connectivity, Bluetooth, or a temporary operating system problem.
This simple distinction can help narrow down the possible causes.
Test the Device on Another Computer
If possible, connect the keyboard or mouse to another compatible computer.
This is a useful way to determine whether the problem follows the device.
For example, if a wired mouse does not work on your computer but works normally on another computer, the issue may be related to your computer’s settings or hardware.
If the mouse does not work on either computer, the mouse itself may need attention or replacement.
You do not need specialized diagnostic software to perform this basic test.
Check for Driver Problems
Drivers allow the operating system to communicate with hardware devices.
On Windows, a keyboard or mouse may sometimes have a driver-related problem.
If your computer’s built-in controls are still accessible, you can use Device Manager to inspect the relevant hardware categories.
Look for entries related to:
- Keyboards
- Mice
- Human Interface Devices
- USB controllers
If you see a warning symbol, Windows may be reporting a problem with a device or driver.
Avoid changing or removing hardware entries unless you understand what they represent. When possible, use the manufacturer’s recommended driver or Windows Update rather than downloading drivers from unfamiliar websites.
Check Windows Update
If you are using Windows, keeping the operating system updated can help maintain compatibility with hardware and accessories.
Open Windows Settings and check for available updates.
If a keyboard or mouse stopped working after an update, however, the timing is worth noting. You can then look for information about the specific update or device rather than making unrelated changes.
Always be cautious when following troubleshooting instructions found online, especially if they recommend downloading unknown software or changing advanced system settings.
Look for Physical Damage
Sometimes the problem is hardware rather than software.
Inspect the keyboard or mouse for visible signs of damage.
For a wired device, check whether the cable is bent, frayed, or damaged. For a wireless device, check the battery compartment and physical switches.
Also look for signs that liquid may have entered the keyboard or mouse.
If a device has suffered significant physical or liquid damage, avoid continuing to use it if doing so could create a safety concern. Follow the manufacturer’s guidance or consider professional assistance.
Clean the Keyboard and Mouse
Dust and debris can sometimes interfere with physical buttons or keys.
Turn off or disconnect the device before cleaning it. Use appropriate cleaning methods recommended by the manufacturer.
For a keyboard, gentle cleaning around the keys can help remove loose debris.
For a mouse, check the sensor area and physical buttons for dirt.
Avoid pouring or spraying liquid directly onto electronic devices.
Common Mistakes to Avoid
Immediately Reinstalling Everything
A keyboard or mouse problem does not usually mean you need to reinstall the operating system. Start with basic connection and power checks.
Downloading Random Driver Tools
Be cautious with websites offering automatic driver-fixing software. Unfamiliar downloads can introduce unwanted programs or create additional problems.
Use trusted sources such as your operating system’s update system or the hardware manufacturer’s official website.
Assuming the Device Is Broken
A dead battery, disabled Bluetooth connection, or faulty USB port can make a perfectly functional device appear broken.
Test the accessory before deciding it needs to be replaced.
Changing Advanced Settings Too Quickly
Registry changes and other advanced system modifications are rarely the first step for a basic keyboard or mouse problem.
Stick to simple troubleshooting unless you have a specific reason to make a more advanced change.
A Simple Troubleshooting Order
If your keyboard or mouse stops working, try these steps in order:
- Check the cable, battery, or power switch.
- Reconnect the device.
- Try another USB port if applicable.
- Check Bluetooth pairing for wireless devices.
- Restart the computer.
- Test the device on another computer if possible.
- Check for operating system or driver updates.
- Inspect the device for physical damage.
This approach helps you move from the easiest possibilities to more involved checks without making unnecessary changes.
Frequently Asked Questions
Why did my keyboard and mouse suddenly stop working?
Common possibilities include a loose connection, low battery, Bluetooth disconnection, USB problems, temporary operating system issues, or hardware failure. The exact cause depends on the device and computer.
What should I do if only my mouse stops working?
Check its power, battery, USB connection, or Bluetooth pairing first. If possible, test it on another computer to determine whether the issue is with the mouse or your computer.
Can a keyboard or mouse stop working because of Windows?
Yes. Operating system, driver, USB, or Bluetooth issues can sometimes affect hardware devices. Checking updates and device settings can help identify the problem.
When should I replace a keyboard or mouse?
Consider replacement when the device consistently fails on multiple compatible computers, shows physical damage, or continues to malfunction after basic troubleshooting.
Final Thoughts
Keyboard and mouse problems can be frustrating, but many common issues have relatively simple causes. Start with the basics: check power and connections, try another USB port, reconnect wireless devices, and restart the computer.
If the problem continues, testing the device on another computer can help determine whether the accessory or the computer is responsible. From there, you can look at drivers, updates, and possible hardware problems.
Taking troubleshooting one step at a time makes the process easier and reduces the risk of changing settings you do not need to change.