You press keys on your keyboard and nothing happens — no characters appear in text fields, shortcuts do not work, and the computer seems to ignore the keyboard entirely. Or some keys work but others do not. Or the keyboard types the wrong characters. A non-working keyboard can be a connection issue, a driver problem, a settings conflict, or a hardware failure. The fix depends on whether the keyboard is completely dead, partially working, or typing incorrect characters.
Quick checks first
Restart the computer
If the keyboard stopped working during use, a restart often fixes temporary driver or USB glitches. If you cannot type to restart normally, press and hold the power button for 10 seconds to force shutdown, then power back on.
Check the connection
Wired USB keyboard: Unplug and replug the USB connector. Try a different USB port. Front panel USB ports on desktops are more likely to have connection issues than rear ports
Wireless keyboard: Check batteries — dead batteries are the most common cause. Replace them with fresh ones, not just repositioned ones. Check that the USB receiver dongle is plugged in securely. Try a different USB port for the receiver
Bluetooth keyboard: Check Bluetooth is enabled on the computer (Settings, Bluetooth). Check that the keyboard shows as Connected in Bluetooth settings. If it shows Paired but not Connected, click it and select Connect. Try turning the keyboard off and back on. If it still does not connect, remove it from Bluetooth devices and re-pair it
Some keys not working
If most keys work but specific keys do not respond:
Physical key issues
Debris under the key: Turn the keyboard upside down and gently shake it to dislodge crumbs, dust, and debris. Use compressed air to blow between the keys. For stubborn debris, carefully remove the keycap (pry up gently with a flat tool) and clean underneath
Liquid spill: If liquid was spilled on the keyboard, specific keys in the affected area may stop working. For external keyboards, disconnect immediately, turn upside down to drain, and let dry for 24 to 48 hours. For laptops, power off immediately, open the laptop as wide as possible to drain, and let dry completely. After drying, some keys may recover; others may have permanent corrosion on the contacts
Worn key switches: On mechanical keyboards, individual switches can fail. If one key feels different from the others (less resistance, no click, mushy) or does not register, the switch has failed. Mechanical keyboard switches can be replaced individually on hot-swap keyboards or by soldering on non-hot-swap boards
Filter Keys and Sticky Keys
Windows has accessibility features that change how keystrokes are interpreted and can make the keyboard appear broken:
Filter Keys: Ignores brief or repeated keystrokes. If enabled accidentally (by holding the right Shift key for 8 seconds), keys seem to not respond because the system ignores quick presses. Settings, Accessibility, Keyboard — turn off Filter Keys
Sticky Keys: Makes modifier keys (Shift, Ctrl, Alt) stay active after being pressed once. If enabled (by pressing Shift 5 times), key behavior is confusing. Settings, Accessibility, Keyboard — turn off Sticky Keys
Toggle Keys: Plays a tone when Caps Lock, Num Lock, or Scroll Lock is pressed. Not usually confusing but check here if you hear unexpected beeps
Wrong characters when typing
If the keyboard types different characters than what is printed on the keys:
Keyboard layout changed
Windows supports multiple keyboard layouts. If you accidentally switched layouts (Windows+Space cycles through installed layouts), the keys map to different characters
Check the language indicator in the taskbar (near the clock). If it shows a different language than expected (FR, DE, ES instead of EN), click it and switch back to English (US) or your preferred layout
To prevent accidental switching: Settings, Time and Language, Language and Region — remove keyboard layouts you do not use. If you only need English (US), remove all other input methods
Num Lock
On laptops without a dedicated number pad, some keys double as a number pad when Num Lock is on. Pressing J types 1, K types 2, L types 3, etc. Press the Num Lock key (or Fn+Num Lock on some laptops) to toggle it off
On desktop keyboards with a number pad, if the number pad types nothing, Num Lock may be off. Press Num Lock to enable it (an indicator light on the keyboard should turn on)
Keyboard not detected at all
Device Manager check
Right-click the Start button and select Device Manager (use the mouse to navigate if the keyboard is not working)
Expand Keyboards. You should see at least one keyboard device listed (Standard PS/2 Keyboard, HID Keyboard Device, or the specific keyboard name)
If the keyboard has a yellow triangle or exclamation mark, the driver has an error. Right-click and select Update Driver
If no keyboard appears at all, the computer is not detecting the keyboard hardware. Try a different USB port, a different cable, or a different keyboard to determine if the problem is the keyboard or the computer
Reinstall keyboard driver
In Device Manager, right-click the keyboard device
Select Uninstall Device. Check Delete the driver software if that option appears
Restart the computer. Windows automatically reinstalls the keyboard driver during boot
USB controller issues
If no USB devices work (not just the keyboard), the USB controller may have a problem. In Device Manager, expand Universal Serial Bus Controllers and check for errors
Try USB ports on different parts of the computer. On desktops, rear ports connect directly to the motherboard while front ports use internal cables that can fail
Laptop keyboard specific issues
Keyboard disabled by external keyboard
Some laptops disable the built-in keyboard when an external keyboard is connected. If you disconnected the external keyboard and the built-in keyboard did not re-enable, restart the computer
Keyboard flex cable
Laptop keyboards connect to the motherboard via a thin ribbon cable. If the laptop was dropped, opened for repair, or the keyboard was replaced, this cable may be partially disconnected
On most laptops, the keyboard can be removed by unscrewing screws on the bottom panel (sometimes hidden under stickers or rubber feet). Once removed, check that the ribbon cable is firmly seated in its connector. The connector usually has a small latch that flips up to release and down to lock the cable
Keyboard disabled in BIOS
Some business laptops (Dell, Lenovo, HP) have a BIOS option to disable the internal keyboard. Restart and enter BIOS (press F2 or Del at boot) and check for a keyboard enable/disable option
PS/2 keyboards
PS/2 keyboards (the round purple connector) are not hot-pluggable. You must connect them before turning on the computer. If you plugged in a PS/2 keyboard while the computer was running, restart for it to be detected
PS/2 ports can be damaged by bending the pins in the connector. Inspect the pins and straighten any bent ones carefully with tweezers or a small screwdriver
Try the on-screen keyboard
While troubleshooting, you can use the Windows on-screen keyboard to type:
Click the Start button, type osk using the mouse (click the search bar, then use the on-screen keyboard icon in the taskbar), or go to Settings, Accessibility, Keyboard, On-Screen Keyboard
The on-screen keyboard lets you click letters with the mouse. This is a temporary workaround while you fix the physical keyboard
Keyboard repair in Columbus or Delaware
If your keyboard is not typing and the troubleshooting above did not fix it, LuxuriousComputers can diagnose whether the issue is the keyboard hardware, USB controller, driver configuration, or laptop ribbon cable, and repair or replace the keyboard to restore full typing functionality.