When a laptop keyboard stops responding, the cause may be a temporary software problem, an accessibility setting, a driver issue, or a physical fault. Before replacing the keyboard or contacting a repair service, work through the checks below in order. The steps apply broadly to Windows laptops and include separate guidance for MacBook users.
Start with simple keyboard checks
Restart the laptop and test the keyboard as soon as the computer starts. If you can use the keys at the manufacturer logo screen or in the BIOS/UEFI settings, the keyboard is probably being detected and the problem may be within the operating system.
- Disconnect USB and Bluetooth keyboards temporarily to rule out connection or driver conflicts.
- Check whether dirt, crumbs, or another obstruction is preventing keys from moving properly.
- Look for signs of liquid damage, including sticky keys or groups of keys that stopped working together.
- If the laptop was recently opened for a repair or battery replacement, the internal keyboard cable may need inspection by a qualified technician.
If you cannot type, connect a USB or Bluetooth keyboard if one is available. This can provide access to settings while you troubleshoot the built-in keyboard.
Fix a keyboard that is not working in Windows
Check accessibility settings
Windows accessibility features can change how keystrokes are handled and may make the keyboard appear unresponsive. Open the Accessibility section in Settings and review the keyboard options. Temporarily turn off features such as Filter Keys, Sticky Keys, and Toggle Keys, then test the keyboard again. The exact menu name can vary between Windows versions.
You can also use the on-screen keyboard as a temporary input method. Search Windows Settings for On-Screen Keyboard or open it from the Accessibility keyboard settings, then select keys with the mouse or touchpad.
Reinstall or refresh the keyboard driver
Open Device Manager and expand Keyboards. Right-click the internal keyboard entry and try Update driver. If that does not help, choose Uninstall device and restart the laptop. Windows may detect the keyboard again and reinstall its driver during startup.
If the keyboard does not appear under Keyboards, use Device Manager’s option to scan for hardware changes. A missing device can indicate a driver or detection problem, although it can also point to a hardware fault.
Check Fn Lock and function-key behavior
Some laptops use an Fn Lock to switch between standard F1–F12 commands and functions such as volume, brightness, or wireless controls. Look for an Fn Lock symbol on the keyboard and try the key combination shown for your model. Common combinations include Fn + Esc or Fn + Caps Lock, but the correct shortcut varies by laptop.
If only the function keys seem affected, this setting is more likely to be involved than a complete keyboard failure.
Review BIOS or UEFI settings
Restart the laptop and enter the BIOS or UEFI setup using the key shown during startup. If the keyboard works there, check for keyboard-related options, including function-key behavior and USB or legacy keyboard support where available. Avoid changing unrelated firmware settings. If you are unsure what an option does, leave it at its original value and consult the instructions for the exact laptop model.
MacBook keyboard troubleshooting
MacBook keyboards generally do not have a simple on/off switch, but settings, startup software, or hardware problems can prevent normal input. Restart the Mac and test the keyboard before opening other applications. You can also start in Safe Mode; if the keyboard works there, a startup item, extension, or user-level setting may be involved.
In System Settings, review Keyboard, including key repeat, modifier keys, and input sources. For an external keyboard, confirm that Bluetooth is enabled and that the device is paired correctly.
Persistent problems may require a controller reset. Intel-based Macs may benefit from an SMC reset, while shutting down and restarting an Apple silicon Mac performs the comparable basic reset process described for that platform. Older Macs may also support a PRAM or NVRAM reset. Use instructions for the exact Mac model before performing any reset.
Manufacturer-specific settings
Dell, HP, Lenovo, ASUS, and Acer laptops can include their own hotkey utilities, firmware options, or Fn Lock controls. If the keyboard began failing after an update, check the support page for the exact model and operating system. Reinstalling or updating the manufacturer’s keyboard or hotkey utility may restore special-key behavior.
Use the full model number when searching for instructions. Broad advice for a product family may not match the keyboard layout or firmware options on your particular laptop.
When the keyboard needs repair
A keyboard that fails in the BIOS or at the startup screen is more likely to have a hardware problem. Other warning signs include a complete row or section of dead keys, unpredictable input, visible damage, or a failure that followed a spill.
If the laptop is under warranty, contact the manufacturer before opening it. Otherwise, a repair shop can check the keyboard assembly, ribbon cable, and related electronics. Replacing the keyboard may be practical on some models, but disassembly can cause further damage if the procedure is not appropriate for that design. Until the problem is resolved, a USB or Bluetooth keyboard can serve as a noninvasive workaround.
