"I'm typing but nothing is appearing." "Only some keys are responding." "I can't type my password on the login screen." The causes of a non-responsive Windows keyboard range from a loose USB connection and driver conflicts to accidentally-enabled Filter Keys, and a loose ribbon cable on a laptop. This guide covers Windows 11 (through 24H2) and Windows 10, and walks through diagnosis and fixes for USB wired keyboards, Bluetooth and wireless keyboards, and laptop built-in keyboards — from basic software fixes through driver reinstallation and repair decisions.
Table of Contents
- Identify your pattern: symptoms and causes
- First steps to try for any keyboard
- USB wired keyboard troubleshooting
- Bluetooth and wireless keyboard troubleshooting
- Laptop built-in keyboard troubleshooting
- Windows settings as the cause
- Reinstall the keyboard driver
- Advanced fixes for persistent problems
- Signs of a hardware failure
- Summary: fix order checklist
Identify your pattern: symptoms and causes
No keys respond at all
When the entire keyboard is dead, the cause is almost always either a connection problem (USB, Bluetooth, or PS/2) or a hardware failure in the keyboard itself. Check whether the mouse is still working and whether CapsLock or NumLock LEDs light up — these details tell you whether the issue is in the connection path or in the keyboard hardware. If the situation is the opposite — only the mouse is unresponsive or the cursor is frozen — see How to Fix a Mouse That Won't Work on Windows | USB, Bluetooth, and Touchpad Diagnosis.
Only some keys aren't working
If specific keys — say, the "A" key or all the number keys — are dead while others work fine, the cause is likely physical debris or a worn switch under the keycap, or a keyboard layout mismatch. If Windows is treating your Japanese-layout keyboard as a US-layout, Shift+2 produces "@" instead of """ — your keys are "working," just outputting the wrong characters.
No response even on the login screen or in BIOS
If the keyboard is unresponsive before Windows loads — on the BIOS/UEFI screen or the Windows login screen — this is not a Windows driver problem. It's a hardware connection issue or a keyboard failure, which narrows the diagnosis considerably.
Only unresponsive in a specific app
If the keyboard works everywhere except one application — for example, it works in the browser but not in a game — the problem is likely a shortcut conflict or input mode issue within that app. Full-screen games with DirectInput or Raw Input settings, and apps with custom key capture, are common sources of this.
Quick-reference table by symptom
| Symptom | Primary cause | First thing to try |
|---|---|---|
| All keys dead (USB) | USB port or cable | Plug directly into a different port |
| All keys dead (Bluetooth) | Dead battery or pairing lost | Replace batteries → re-pair |
| Dead even in BIOS | Keyboard hardware failure | Test with a different keyboard |
| Some keys only | Physical damage or layout mismatch | Check layout settings → clean |
| Delayed response | Filter Keys enabled | Turn off Filter Keys |
| Wrong symbols appearing | EN/JP layout mismatch | Switch to Japanese IME in language settings |
First steps to try for any keyboard
Restart Windows
A restart reloads the keyboard driver and clears most temporary glitches — it's the single most effective first step. Note that Shut Down → Power On and Restart behave differently in Windows (due to Fast Startup). If one doesn't fix it, try the other. If the keyboard is unresponsive, you can still use the mouse to click the Start menu → Power → Restart.
Check NumLock and ScrollLock
If the numpad isn't producing numbers, check NumLock. If the arrow keys are behaving strangely, check ScrollLock. When NumLock is off, numpad 8 becomes Home, numpad 4 becomes Left arrow, and so on — which looks like "I can't type numbers" but is actually just NumLock being off.
Use the on-screen keyboard for emergency input
Windows has a built-in on-screen keyboard that lets you click characters with the mouse when the physical keyboard is unavailable. Start menu → Settings → Accessibility → Keyboard → toggle "On-Screen Keyboard" on. This is a valuable fallback for entering passwords and running commands while you diagnose the hardware issue.
USB wired keyboard troubleshooting
Try a different USB port
For a dead USB keyboard, the first move is always to try a different USB port. On a desktop, skip the front panel and go straight to the rear panel ports connected directly to the motherboard — front-panel ports route through internal cables that are prone to intermittent connections.
Try USB 3.0 (blue), USB 2.0 (black), and USB-C in sequence. On some motherboards, a newer USB 3.0 controller loads its driver late during boot, and an older keyboard may not respond until Windows is fully started — switching to a USB 2.0 port solves this.
Bypass any USB hub and plug in directly
If you're running the keyboard through a USB hub or docking station, the hub may have insufficient power or may have failed. Connect the keyboard directly to a port on the PC and check whether it comes back.
Check for a broken or frayed cable
On older keyboards, the cable can develop an internal break at the stress points — usually where it exits the keyboard body or near the connector. If gently bending the cable causes the keyboard to briefly respond, you have a confirmed cable break. Replace the cable if the keyboard model supports it; otherwise, the keyboard needs replacing.
Disable USB Selective Suspend
Windows' power-saving settings can put USB ports to sleep, causing the keyboard to stop responding until you physically unplug and replug it.
- Open Control Panel → Power Options → click "Change plan settings" next to your active plan
- Click "Change advanced power settings"
- Expand USB settings → USB selective suspend setting → set it to "Disabled"
- Click OK and restart
This is especially effective if the keyboard only stops working right after the PC wakes from sleep.
Bluetooth and wireless keyboard troubleshooting
Check the batteries or charge level
A dead battery is the most common cause of a Bluetooth keyboard going silent. Even batteries that "shouldn't" be depleted can discharge unexpectedly after a long idle period. Replace the batteries with fresh ones, or charge the keyboard for at least 30 minutes before testing. On Windows, go to Settings → Bluetooth & devices → find the keyboard — if it shows a battery percentage, check that first.
Re-pair the keyboard
Corrupted pairing data can cause a keyboard to show as "Connected" in Device Manager while not actually passing keystrokes.
- Settings → Bluetooth & devices
- Find the keyboard, click the "..." menu → "Remove device"
- Put the keyboard into pairing mode (usually a long press of the connect button)
- Click "Add device" → "Bluetooth" and select the keyboard to re-pair
If you use both a Bluetooth mouse and keyboard, it's worth removing and re-pairing both — sometimes only one has lost its pairing while the other appears fine.
Unplug and replug the USB receiver
For 2.4 GHz wireless keyboards that use a dedicated USB dongle (Logitech Unifying, for example), unplugging the receiver and plugging it into a different port often resolves the problem immediately. If the manufacturer provides companion software (such as Logi Options+), you may need to re-pair through that software as well.
Interference and distance
Bluetooth operates on the 2.4 GHz band and can be disrupted by Wi-Fi routers, microwave ovens, and — notably — USB 3.0 devices, which emit RF interference in the same frequency range. If there's a metal object between the keyboard and PC, or if the distance is more than a few meters, signal loss is likely. Move the wireless receiver closer to the keyboard using a USB extension cable, or reposition the keyboard.
Laptop built-in keyboard troubleshooting
FnLock and accidental special-key activation
If the top row of function keys (F1–F12) is triggering volume, brightness, or media controls instead of F-key commands, FnLock is active. Most laptops toggle it with Fn + Esc or Fn + F1. Some models let you set it permanently in BIOS under a setting called "Action Keys Mode" or "Hotkey Mode."
Numpad area not responding
On laptops without a dedicated numpad, certain key clusters (U, I, O, J, K, L, M, etc.) double as a numpad overlay. When NumLock is on, those keys produce numbers instead of letters. Turn NumLock off to return to normal letter input.
Spills and debris
If the keyboard started misbehaving after a spill, or if only certain areas of keys are stuck or unresponsive, liquid has likely reached the circuitry.
- Power off immediately and disconnect the battery if possible
- Flip the laptop upside down to drain the liquid, and blot the exterior dry
- Leave it to air-dry naturally for 48–72 hours
- Don't use a hairdryer or put it in rice
For dust and crumbs: use compressed air blown in from the side (not straight down — blowing directly downward can dislodge keycap mechanisms).
Detached ribbon cable
Inside a laptop, the keyboard connects to the motherboard via a flat flex cable (FFC). A drop or repeated lid-open/close cycles can loosen this connector, making the built-in keyboard completely unresponsive even though a plugged-in USB keyboard works fine. This is a repair job — contact the manufacturer's warranty service or a service center.
Windows settings as the cause
Turn off Filter Keys and Sticky Keys
The accessibility feature Filter Keys, when active, ignores brief keystrokes or requires a long press before a key registers. It's commonly enabled by accident — holding the right Shift key for 8 seconds triggers it.
- Settings → Accessibility → Keyboard
- Turn Filter Keys off
- Also check that Sticky Keys and Toggle Keys are in the state you intend
If keys seem slow to respond or intermittently don't register, check these settings before anything else.
Input language and keyboard layout
If typing "@" produces "[", or Shift+2 gives """ instead of "@", your Japanese-layout keyboard is being treated as a US layout.
- Settings → Time & Language → Language & Region
- Click the "..." next to "Japanese" → "Language options"
- Check that the keyboard list shows "Microsoft IME" and that the layout is set to "Japanese Keyboard (106/109-key)"
If multiple layouts are listed, remove the ones you don't need. Pressing Win + Space cycles through input sources — an accidental press may have switched you to an English IME without you realizing it.
Touch keyboard conflict with physical keyboard
On 2-in-1 laptops and devices with a tablet mode, the touch keyboard and the physical keyboard can sometimes interfere with each other. Exit tablet mode, or go to Settings → Accessibility → Keyboard and turn off the touch keyboard to see if that resolves it.
Reinstall the keyboard driver
Uninstall and reinstall via Device Manager
A driver reinstall is the most reliable software fix. You can perform it using the on-screen keyboard or the mouse.
- Press Win + X → "Device Manager"
- Expand the "Keyboards" section
- Right-click the keyboard entry (Standard PS/2 Keyboard, HID Keyboard Device, etc.) → "Uninstall device"
- Click "Uninstall" to confirm
- Restart the PC — Windows automatically reinstalls the standard driver on reboot
Update to the latest driver
Brand-name keyboards from Logitech, Razer, Corsair, Topre, and others come with companion software (Logi Options+, Razer Synapse, iCUE, and so on). Keeping that software up to date can fix compatibility issues with newer Windows versions and power-management bugs. Also check Settings → Windows Update → Advanced options → Optional updates for driver updates delivered through Windows Update.
Roll back the driver
If the keyboard stopped working right after a driver update, rolling back is the most direct fix. Device Manager → right-click the keyboard → Properties → Driver tab → "Roll Back Driver." If the button is greyed out, the previous version is no longer stored on the system.
Advanced fixes for persistent problems
Disable Fast Startup
Windows' Fast Startup saves a partial system state on shutdown to speed up the next boot. In rare cases, this causes the keyboard driver to load in a broken state on the next power-on.
- Control Panel → Power Options
- Click "Choose what the power buttons do"
- Click "Change settings that are currently unavailable"
- Uncheck "Turn on fast startup"
- Click "Save changes"
If there's a difference in behavior between Shut Down → Power On and Restart, this is the likely cause.
Clean boot to isolate a conflict
If you suspect a background program is intercepting key input, a clean boot rules that out. Press Win+R, type msconfig, go to the Services tab and check "Hide all Microsoft services" → disable everything remaining, then go to the Startup tab and open Task Manager to disable all startup items → restart. If the keyboard works normally, re-enable half the services and apps at a time and restart until you find the one causing the problem.
Repair system files with SFC and DISM
If system file corruption is contributing to the problem, open an administrator terminal and run these commands in order:
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannowAllow 20–40 minutes for both to complete. For more on using these tools, see How to Fix the Windows Blue Screen of Death | Stop Codes and Recovery Steps.
System Restore
If the keyboard was working a few days ago, System Restore can revert Windows to a state before whatever change broke it. Search for "Create a restore point" in the Start menu → click "System Restore" → follow the wizard to pick a restore point from before the problem started. Your personal documents are unaffected; installed apps and system settings roll back.
Signs of a hardware failure
Test on another PC
For a USB or Bluetooth keyboard, plug it into a different computer. If it works on the other machine, the issue is in your PC's drivers or settings. If it's dead on the other machine too, the keyboard itself has failed.
No response even in BIOS
If pressing Del or F2 at startup gets no response from the keyboard in the BIOS/UEFI screen, this confirms the problem is hardware, not Windows. Try swapping to a different USB port or a different keyboard to isolate whether the issue is the port or the keyboard.
Replacement vs. repair
For budget USB keyboards, replacement almost always makes more sense than repair. For premium mechanical keyboards, Topre boards, or HHKB, check whether the manufacturer offers a repair service. For a laptop's built-in keyboard, replacement is a parts-and-labor job typically costing ¥20,000–50,000 at a manufacturer service center. In the interim, an external USB keyboard is a practical workaround.
Summary: fix order checklist
Here's the recommended sequence for a non-responsive Windows keyboard.
- Identify the symptom (all keys / some keys / BIOS-level / app-specific)
- Restart Windows and check NumLock / ScrollLock
- USB wired: try a different port directly on the PC; swap the cable
- Bluetooth / wireless: replace batteries; re-pair; replug the USB receiver
- Laptop: check FnLock, NumLock, and any spill history
- Windows settings: check Filter Keys and input layout
- Reinstall the keyboard driver via Device Manager
- Disable Fast Startup
- Clean boot, SFC/DISM, and System Restore
- Test on another PC to confirm hardware failure → replace or repair
Steps 1–4 resolve the vast majority of cases. Keep the on-screen keyboard open as a backup input method so you can navigate settings and run commands while you work through the list.
For a broader guide to Windows problems, see Windows Troubleshooting Guide | Solutions by Symptom.
