The situation when a laptop suddenly stops responding to the keyboard and touchpad (or external mouse) can unsettle even an experienced user. You press keys, move your finger across the touchpad, connect a USB mouse - and the screen remains motionless, as if the device has fallen into a coma. The reasons for this behavior can vary from a simple driver failure to serious hardware failures. The main thing in this situation is not to panic and act consistently.

In this article we will analyze all possible scenarios: from software glitches to physical breakdowns. You will learn how diagnose the problem without outside help, what hotkeys can save the situation, and when it’s time to take the laptop to a service center. We will pay special attention methods for restoring work without data loss - this is critical if important files are stored on the disk. Let's start with the simplest and gradually move on to complex solutions.

1. Checking the underlying causes: power, connection and reboot

Before committing to complex faults, rule out trivial factors. Start by checking laptop power supply: If the battery is low or the power supply is faulty, the system may not function correctly, including ignoring input devices. Connect the charger and wait until the charging indicator lights up steadily (on some models Lenovo ThinkPad or HP EliteBook this may take up to 10 minutes).

If the laptop responds to the power button (the screen lights up, the sound of the cooler is heard), but the keyboard and mouse are dead, try hard reboot. To do this, hold down the power button for 10–15 seconds until the device turns off completely. Then turn it on again. This method resets temporary errors in the operation of USB and PS/2 controllers (responsible for the keyboard and touchpad).

  • 🔌 Check the power cable: Try a different charger or outlet. On models Dell XPS or MacBook Pro A faulty adapter may cause problems with USB ports.
  • 🖱️ Disconnect all external devices: USB hubs, flash drives, printers - they can conflict with input drivers.
  • 🔄 Use a keyboard shortcut: On some laptops (eg ASUS ROG) helps Fn + F9 (disable/enable touchpad).
⚠️ Attention: If after a hard reboot the laptop does not turn on at all (no indication, cooler does not spin) - the problem may be in the power supply or motherboard. In this case, self-repair is dangerous!
📊 How often does your laptop fail with your keyboard/mouse?
  • Once a month
  • Once every six months
  • Never
  • Constantly

2. Hotkeys and alternative control methods

When basic input devices don't work, they come to the rescue alternative management methods. Most laptops support hotkeys to turn the touchpad on/off or reboot the system. For example:

  • 🔑 Win + Ctrl + Shift + B — restarting the graphics driver (may help if the problem is in the video subsystem).
  • 🖥️ Fn + F1-F12 - on some models (for example, Acer Swift) these combinations control the touchpad.
  • 🔄 Alt + F4 — if the screen is active, you can try to close the current window or initiate a shutdown.

If you have MacBook, try the combination Control + Command + Power to force a reboot. On Windows laptops with touch screen (eg Microsoft Surface) you can try to control the system via the touchscreen until you restore the keyboard.

Another way is to connect external keyboard via Bluetooth. Even if the USB ports do not respond, the Bluetooth module may remain operational. To do this:

  1. Turn on Bluetooth on your external keyboard.
  2. On a laptop, hold down the power button for 30 seconds to perform a hard reset (sometimes this will restore the Bluetooth connection).
  3. Try connecting blindly: on most devices, this requires holding the pairing button on the keyboard for 5-7 seconds.
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If you have a laptop with Thunderbolt 3/4 (For example, MacBook Pro 2020+ or Dell XPS 15), try connecting your keyboard via USB-C - this port often has a separate controller and can work even if standard USB fails.

3. Diagnostics via BIOS/UEFI: checking the hardware

If the laptop responds to the power button, but the keyboard and mouse do not work even in the boot menu, the problem is most likely hardware room. To check this, log in BIOS/UEFI. To do this:

  1. Turn off your laptop.
  2. Turn it on and immediately press the BIOS enter key (usually F2, Del, Esc or F12 - depends on the model). On Lenovo this is often Fn + F2, on HPEsc, then F10.
  3. If the keyboard does not respond in the BIOS, this is a sign input controller failure or train.

In BIOS, pay attention to:

  • 🔧 Section Advanced → USB Configuration: Check if the USB ports are enabled (USB Legacy Support must be in position Enabled).
  • 🖱️ Section Main → Touchpad: On some laptops (eg MSI Modern) the touchpad can be disabled at the BIOS level.
Symptom Probable Cause Solution
Keyboard doesn't work in BIOS The cable or controller is damaged Carry to service
Mouse/touchpad doesn't work, keyboard does Touchpad driver failure Update driver via Device Manager
USB devices are not detected USB controller disabled in BIOS Enable USB Legacy Support
Laptop does not respond to external keyboard Problem with USB ports Try a different port or Bluetooth
⚠️ Attention: If the keyboard works in BIOS, but not in Windows, there is a problem software. Don't rush to disassemble your laptop! Continue to the next section.

4. Restoring work in Windows: drivers and system tools

If the keyboard and mouse do not work only in Windows, but they react in the BIOS - the drivers or system settings are to blame. Here's how to fix it:

Method 1: System Restore via Safe Mode

  1. Reboot your laptop and hold Shift when the Windows logo appears (this will bring up the recovery menu).
  2. Select Troubleshooting → Advanced Options → Boot Options → Restart.
  3. After reboot, click F4 (or 4) to enter safe mode.
  4. In safe mode, check the functionality of the keyboard/mouse. If they work, the problem is in the drivers or conflicting programs.

Method 2: Manually update drivers

If you have access to another keyboard (via Bluetooth, for example), do:

  1. Click Win + X and select Device Manager.
  2. Expand sections Keyboards And Mice and other pointing devices.
  3. Right-click on each device and select Update driverAutomatic search.
  4. If this does not help, remove the device and restart the laptop - Windows will install the driver again.

Try safe mode|Update drivers through Device Manager|Check for viruses|Roll back the system to a previous restore point-->

Method 3: Check for viruses

Some viruses (for example, trojan.win32) block input devices. Download the utility to another computer Kaspersky Virus Removal Tool or Dr.Web CureIt!, write it to a flash drive and scan the laptop in safe mode.

5. Hardware faults: when repairs are necessary

If you've tried all software methods and your keyboard and mouse still don't work, the problem is most likely hardware room. Let's look at typical breakdowns:

  • 🔌 The keyboard/touchpad cable is damaged: a common problem with laptops ASUS And Acer after falls or strong pressure on the body. The cable may move away from the connector on the motherboard.
  • 💻 South bridge (chipset) is faulty: responsible for USB and PS/2 operation. Typical for older laptops (Sony Vaio, Toshiba Satellite) after overheating.
  • 🔋 Problems with power supply to USB ports: If the ports do not supply voltage, external devices will not be detected. Checked with a multimeter.

How to diagnose yourself?

If you are ready to disassemble your laptop, follow the instructions:

  1. Turn off the power and remove the battery.
  2. Remove the back cover (on most models it is secured with Phillips screws).
  3. Locate the keyboard cable (usually from the top of the case to the motherboard) and check that it is tightly connected.
  4. If the cable comes off, carefully insert it back and fix it (do not use force!).
⚠️ Attention: Disassembling a laptop Apple MacBook (especially models with Retina display) or Microsoft Surface requires special tools (suction cups, plastic spatulas). Without experience, you risk damaging the display or battery!
What to do if the laptop is under warranty?

If your laptop is under warranty, don't disassemble it yourself - this will void the warranty. Contact an authorized service center with a description of the problem. Check to see if your warranty covers repairs to input controllers (this often refers to “mechanical damage” that is not eligible for free repair).

6. Last resort: resetting Windows and reinstalling the system

If the laptop responds to the keyboard in the BIOS, but not in Windows, and none of the methods helped, it remains system reset or reinstallation. This is a radical method, but it often solves problems with drivers and software conflicts.

Option 1: Reset Windows while keeping files

  1. Reboot the laptop with hold Shift (as in section 4).
  2. Select Troubleshooting → Reset your computer.
  3. Click Save my files (the system will be reinstalled, but documents and photographs will remain).

Option 2: Clean Windows Installation

If the reset does not help, a complete reinstallation will be required:

  1. Create a bootable USB flash drive with Windows on another PC (use Media Creation Tool from Microsoft).
  2. Connect the USB flash drive to the laptop and boot from it (you may need to change the boot priority in the BIOS).
  3. Delete all partitions on the disk and install Windows again.

After reinstallation, be sure to install drivers from the official website of the laptop manufacturer (for example, for HP Pavilion - on support.hp.com). Using drivers from Windows Update may lead to a repeat conflict.

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Reinstalling Windows should be the last step. If the problem is hardware (for example, the USB controller is burned out), it will not help, but you will lose time and data.

7. Prevention: how to avoid problems in the future

To minimize the risk of repeated failures, follow these recommendations:

  • 🔄 Update your drivers regularly, especially for the keyboard and touchpad. Use the manufacturer's utilities (Dell SupportAssist, Lenovo Vantage).
  • 🛡️ Install a reliable antivirus and scan the system once a week. Viruses often block input devices.
  • 💻 Avoid physical activity: Do not place heavy objects on the keyboard or drop the laptop.
  • 🔌 Use quality USB hubs, if you connect many devices. Cheap hubs can cause conflicts.

For laptops with touch screens (For example, Microsoft Surface Pro or Lenovo Yoga) it is useful to set up a fallback input method. Windows 10/11 has a built-in onscreen keyboard (Win + Ctrl + O), which can be included in advance in Settings → Accessibility.

We also recommend creating system restore point after a fresh installation of Windows and driver updates. This will allow you to quickly roll back to a working state if the problem reoccurs. To do this:

  1. Open Control Panel → Recovery → Set up system recovery.
  2. Select your system drive and click Customize.
  3. Enable system protection and specify the amount of disk space (3–5 GB is enough).

FAQ: Frequently asked questions about keyboard and mouse not working

❓ The laptop does not respond to the keyboard, but the external USB mouse works. What's the problem?

Most likely faulty keyboard cable or its controller on the motherboard. If the laptop is new, it may be a factory defect (contact the warranty store). On older devices, the cable could have become frayed or oxidized. The service will replace it in 1–2 hours.

❓ The touchpad stopped working after a Windows update. How to return it?

This is a typical problem after major updates (for example, moving from Windows 10 to 11). Solution:

  1. Roll back the touchpad driver to Device Manager (right click on device → Properties → Driver → Roll Back).
  2. If a rollback is not available, download the driver from the laptop manufacturer’s website (section Support).
  3. For Synaptics or ELAN touchpad utility can help Touchpad Blocker (she resets the gesture settings).
❓ The laptop does not turn on and the keyboard does not light up. What to do?

If there is no response to the power button (no lights are on, you can’t hear the cooler), the problem may be:

  • Power supply (try another charger).
  • Battery (remove it and try to turn on the laptop from the network).
  • Motherboard (power controller burnt out).

If the laptop is under warranty, take it to service. If not, check the voltage at the output of the power supply with a multimeter (it should be 0.5–1 V higher than stated, for example, 19.5 V instead of 19 V).

❓ Is it possible to connect a keyboard via Wi-Fi if USB does not work?

Yes, but with reservations:

  • Most wireless keyboards (Logitech MX Keys, Microsoft Sculpt) use a USB receiver, so they won't help.
  • Keyboards with Bluetooth (For example, Apple Magic Keyboard) will be suitable if the Bluetooth module of the laptop is working properly.
  • Some keyboards support connection via RF (2.4 Hz) without USB dongle, but they are rare and expensive.

Before purchasing, check the specifications that the keyboard works without USB receiver.

❓ After cleaning the laptop, the keyboard stopped working. Is this related?

Most likely yes. Reasons:

  • Damaged keyboard cable during assembly/disassembly.
  • The cable connector is not connected correctly to the motherboard (check if it is bent).
  • Moisture or dust got on the contacts (if cleaning was wet).

Solution: disassemble the laptop again and check the tightness of the cable connection. If the contacts are oxidized, carefully wipe them with alcohol.