The situation when input devices stop responding is one of the most stressful for the user, as it makes it impossible to control the operating system. The problem may arise suddenly: you pressed a key and the cursor froze, or the keys stopped responding to presses during an important document. In most cases, this is a software failure rather than a physical breakdown, which gives hope for a quick restoration of functionality without expensive repairs.
There can be many reasons for this behavior: from a simple driver freeze to a malfunction of the built-in controller Embedded Controller. Sometimes the problem lies in an operating system update that was not completed correctly, or in a conflict with third-party software. It is important to act consistently, starting with the simplest methods, so as not to aggravate the situation with unnecessary manipulations.
In this article we will look at effective ways to diagnose and fix the problem. We will go from soft reboots to hardware manipulations with the device's power supply. If your mouse and keyboard are not working on your laptop, follow the instructions to regain control of your laptop as soon as possible.
Primary diagnosis and quick solutions
Before delving into deep system settings, it is worth eliminating the most obvious causes of the failure. Often the problem is solved by a simple restart, which clears temporary errors in operation RAM. If you are on the desktop, try pressing the combination Ctrl + Alt + Delete. Even if the mouse does not respond, the keyboard may bring up the security menu from where you can choose to reboot.
In some cases, a forced reboot by long pressing the power button helps. Hold it for about 10-15 seconds until the screen goes completely dark and the indicators go out. Wait a few seconds, then turn on the device again. This action resets the state USB controller and can restore the functionality of the peripherals.
If you have an external mouse or keyboard connected, check if it works in the BIOS or boot menu. This is a critical step to distinguish between a hardware and software problem. If external devices work, but built-in ones do not, the problem is in the drivers or BIOS settings. If none of them work, most likely the problem is deeper.
⚠️ Attention: If the laptop freezes and does not respond to a long press of the power button, do not try to pull out the battery or disconnect the power cord if the battery is not removable. This may damage your hard drive or file system.
Resetting Static Electricity and Power Controller
One of the most common reasons why the keyboard and touchpad stop working is the accumulation of static electricity on the motherboard capacitors. This phenomenon is often called "sticking" Embedded Controller (EC). The onboard controller is responsible for powering the keyboard and controlling the fans, and failure will block input.
To resolve this issue, you must perform a complete power reset procedure known as a "Hard Reset." This method is effective even for modern laptops with built-in batteries. You need to completely power down the system so that the controller will reboot and clear the error cache.
The procedure is as follows: disconnect the charger from the laptop. If the battery is removable, remove it. Then hold down the power button for 30-40 seconds, even if the screen does not respond. After that, connect the charger (without the battery, if it was removed) and try to turn on the laptop. Often this step solves the problem of invisible input devices.
☑️Preparing for a power reset
Diagnostics in Safe Mode and BIOS
To understand whether the problem is software, you need to check the operation of the devices in an environment that is minimally loaded with drivers. Try going to BIOS or UEFI. To do this, when you turn on the laptop, press the key F2, Del or F10 (depending on model). If the keyboard works in the BIOS, it means that it is physically working, and the problem lies in the Windows drivers or a software conflict.
If entering the BIOS is also blocked, try booting into Safe Mode. To do this, during boot, interrupt the system startup (by pressing and releasing the power button) to bring up the recovery menu, or use the recovery disk. In Safe Mode, Windows loads only basic drivers, which eliminates the influence of third-party programs.
In Safe Mode, try connecting an external USB keyboard. If it works but the built-in one doesn't, this confirms a problem with the HID drivers. In this case, you need to go to Device Manager through the control panel and remove input devices, then reboot the system to automatically reinstall the drivers.
- Yes, mouse and keyboard work
- Yes, but nothing reacts
- No, I can't enter the BIOS
- I don't know what BIOS is
Working with drivers and device manager
If you have access to the system (for example, through an external mouse or in safe mode), the next step is to check the drivers. Open Device Managerby pressing Win + X and selecting the appropriate item, or entering the command devmgmt.msc in the Run menu. Find the "Keyboards" and "Mice and Other Pointing Devices" sections.
Look for devices with a question mark or yellow exclamation point. This indicates a driver failure. Right-click on the problematic device and select Remove device. Don't be afraid to do this, as the next time you restart Windows will automatically try to find and install the correct driver again.
It's also worth checking out the USB Controllers section. Sometimes the problem occurs due to a malfunction USB Root Hub. Try turning off the power to the USB ports in the power settings. Go to Properties controller, tab Power management and uncheck "Allow the computer to turn off this device to save power."
Do not forget about specific drivers from the laptop manufacturer. Utilities like Lenovo Hotkeys, HP Quick Launch Buttons or ASUS ATK Package are often responsible for the correct operation of the built-in keys. If they are not installed or are outdated, the function keys and touchpad may become disabled.
How to find drivers without a mouse?
Use the Tab key to switch between items, Enter to select, and arrows to navigate. Search for "Device Manager" and press Enter.
BIOS settings and disabling input devices
Sometimes the problem lies in the settings of the motherboard itself. If you are still able to get into the BIOS/UEFI, check whether the built-in devices are disabled there. Find a section Peripherals, Advanced or Integrated Devices. Make sure the items Internal Keyboard And Touchpad set to value Enabled.
Some laptops have a function to lock the touchpad when an external mouse is connected, or simply a hotkey. Check if the combination is pressed accidentally F5, F7 or F9 (usually with an image of a crossed out touchpad). Try pressing this key several times. Also check your settings Legacy USB Support - sometimes disabling it causes problems with device recognition at boot.
Resetting BIOS settings to factory defaults (Load Setup Defaults) may also help. This is usually done by pressing a key F9 or F5 inside the BIOS menu, and saving - F10. This will return all settings, including power and port management, to their original state.
⚠️ Warning: Be careful when changing BIOS settings. Incorrect settings may make it impossible to boot the operating system. If you are not sure of your actions, it is better to reset the settings to standard.
Hardware faults and physical diagnostics
If software methods do not help, there may be a physical breakdown. Most often this occurs due to liquid getting inside the housing. Even a drop of spilled tea or coffee can cause oxidation of the contacts on the keyboard cable or on the motherboard. In this case, devices may operate intermittently or become completely unresponsive.
The second common cause is wear and tear on the cable connecting the keyboard or touchpad to the motherboard. Constant vibration or careless opening of the cover may cause the contacts to come loose. In such cases, it is necessary to disassemble the laptop and reconnect the connectors. There may also be physical damage to the keyboard itself or the touchpad controller.
Check the condition of the cable. To do this, you will need to carefully remove the bottom cover of the laptop (if this is possible without disassembling the keyboard) and check that the cable is securely connected to the board. If you see signs of corrosion or damage to the contacts, cleaning with alcohol or replacing the component is necessary.
| Reason | Symptoms | Difficulty of repair | Solution |
|---|---|---|---|
| Power controller failure | All devices do not work after sleep | Low | Hard Reset (power reset) |
| Driver problem | Doesn't work in Windows, works in BIOS | Low | Reinstalling drivers |
| Liquid ingress | Keys stick and work intermittently | High | Cleaning or replacing the keyboard |
| Loop break | Complete lack of response to clicks | Average | Replacing a cable or keyboard |
| Motherboard failure | Even external USB devices do not work | Very high | Repair in service |
If the devices do not work even in the BIOS and after a power reset, the problem is most likely hardware and requires disassembling the laptop.
Prevention and Alternative Management Methods
To avoid similar situations in the future, it is recommended to regularly update drivers and BIOS firmware. Install updates only from official sources of the manufacturer. It is also useful to periodically clean the laptop from dust, since overheating can cause unstable operation of the controllers.
If a problem occurs at the most inopportune moment, and you cannot fix the device right away, use the built-in Windows tools to control without a keyboard and mouse. Turn on On-screen keyboard through the accessibility menu (usually called by the combination Win + Ctrl + O or through the Start menu, if you can reach it with the mouse). This will allow you to save important data and reboot the system correctly.
You can also connect an external USB keyboard and mouse. If they work, you can diagnose and repair the software part. As a last resort, use a bootable USB flash drive with LiveCD Linux to copy important files to external media before contacting a service center.
Always keep an external USB keyboard handy. In an emergency, it can save your data if the built-in input devices fail.
FAQ: Frequently asked questions from users
What to do if the mouse and keyboard do not work immediately after updating Windows?
Most likely, the update has overwritten or damaged input device drivers. You need to boot into safe mode (interrupting system startup) and uninstall your keyboard and mouse drivers in Device Manager. When you reboot, the system will install them again.
Why does the keyboard work but the touchpad doesn't?
This could be caused by accidentally pressing the touchpad disable hotkey or by a glitch in the power management settings. Check the key combinations (usually Fn + F-key) and settings in the Mouse Control Panel.
Can disabling your antivirus help?
Yes, sometimes antivirus software conflicts with input drivers, blocking them from working. Try disabling protection for the duration of diagnostics or booting into safe mode, where the antivirus usually does not start.
What to do if the laptop does not see the external USB keyboard?
If the external keyboard is also not detected, the problem may be with the USB controller or motherboard. Try connecting the device to other ports. If all else fails, this is a sign of a serious hardware problem.
How much does it cost to repair a laptop keyboard?
The cost of replacing a keyboard depends on the laptop model and type of replacement. On average it is from 1500 to 5000 rubles for work and parts. If the problem is in the cable or board, the price may be higher. The exact cost can only be found out after diagnostics at a service center.