Certain keyboard keys not working

Vrj123

Member
Joined
Mar 11, 2026
Messages
1
Hello

I have a Asus M513UA. I noticed after a feature update the t key and e key would only work after I repeatedly pressed the keys. Shortly after the t key stoped working altogether.
the hardware is working perfecly. In ubuntu I have no issues at all. I tried reinstalling windows but no luck.
I have absolutly no idea why this is happening

Any Help please
 
Hi Vrj123,
Because the keyboard works normally in Ubuntu, this points much more to a Windows-side problem than a physical keyboard failure. The fact that it started after a feature update supports that too.
Also, I should mention: no attachments came through on this post, so if you meant to attach anything, please try uploading it again.

Most likely causes​

Since you already reinstalled Windows and the issue still returned, the most likely culprits are:
  1. Incorrect / corrupted keyboard or ASUS-specific driver
  2. ASUS utility or hotkey service interfering
  3. Windows accessibility/input setting issue
  4. Firmware/BIOS + chipset interaction after the feature update
  5. Less commonly, a registry/scancode remap or filter driver problem

What to try first​

Please go through these in order.

1) Test with the On-Screen Keyboard​

Press Win + Ctrl + O and test the E and T keys there.
  • If the on-screen keyboard types e and t normally, that strongly suggests the issue is with the physical keyboard input path in Windows, not the language/layout itself.
  • If even the on-screen keyboard has issues, then it may be a layout/remapping/software problem.

2) Check keyboard layout​

Go to:
Settings > Time & language > Language & region > ... > Language options > Keyboards
Make sure you are using the expected layout, for example:
  • US
  • UK
Remove any extra keyboard layouts you do not use.
Also test by pressing:
Win + Space
to switch layouts and see whether the behavior changes.

3) Turn off Filter Keys / accessibility keyboard settings​

Go to:
Settings > Accessibility > Keyboard
Turn off:
  • Filter Keys
  • Sticky Keys
  • Toggle Keys
Filter Keys in particular can make repeated or delayed presses behave strangely.

4) Completely remove keyboard devices in Device Manager​

This is one of the best next steps.
  1. Right-click Start → Device Manager
  2. Expand Keyboards
  3. Right-click each keyboard device → Uninstall device
  4. Also expand Human Interface Devices
  5. If you see ASUS-related input devices or HID keyboard devices, uninstall the relevant keyboard/HID input entries too
  6. Restart the laptop
Windows will reinstall fresh copies automatically.

5) Reinstall ASUS drivers from ASUS support page​

Do not rely only on Windows Update here.
For your ASUS M513UA, install/reinstall from ASUS support:
  • Chipset driver
  • ATK / ASUS Keyboard Hotkeys / ASUS System Control Interface if available for your model
  • Touchpad / HID / Serial IO related drivers
  • BIOS update if ASUS offers a newer stable version
This matters because laptop keyboards often depend on vendor-specific ACPI/HID handling, not just a generic keyboard driver.

6) Check for upper/lower filter driver issues​

Open Command Prompt as Administrator and run:
reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96B-E325-11CE-BFC1-08002BE10318}"
Look for values named:
  • UpperFilters
  • LowerFilters
If you see unusual third-party entries, that may be relevant.
Do not delete anything yet—just report back what it shows.

7) Test in Safe Mode​

Boot into Safe Mode and test the keys.
If the keys work normally in Safe Mode, that strongly indicates a driver/service/software conflict in normal Windows.
To enter Safe Mode:
  1. Hold Shift and click Restart
  2. Go to Troubleshoot > Advanced options > Startup Settings > Restart
  3. Choose Safe Mode

8) Clean boot test​

If Safe Mode helps, do a clean boot:
  1. Press Win + R, type msconfig, press Enter
  2. On Services tab, tick Hide all Microsoft services
  3. Click Disable all
  4. Go to Startup → open Task Manager
  5. Disable all startup items
  6. Restart
Then test the keyboard.
If the problem disappears, something loaded in normal startup is causing it.

9) Check for scan-code remapping​

Open Command Prompt as Administrator and run:
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Keyboard Layout" /v "Scancode Map"
  • If it says the value does not exist, that is normal.
  • If a Scancode Map exists, report it back here.

10) Run Windows system repair commands​

Open Command Prompt as Administrator:
Code: 
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
Even though you reinstalled Windows, this is still worth checking if an OEM driver package or update introduced corruption afterward.

Very important question​

When you say you reinstalled Windows, was it:
  • a normal Reset this PC
  • a clean install from USB
  • or a reinstall that kept ASUS software/drivers?
That detail matters a lot. If this happened even after a true clean USB install, I would focus heavily on:
  • ASUS driver package
  • BIOS
  • firmware/input controller behavior in Windows only

My best guess​

Given your symptoms:
  • started after a Windows feature update
  • Ubuntu works perfectly
  • key presses became intermittent, then one stopped in Windows
  • reinstall did not help
My leading suspicion is an ASUS keyboard/HID/ACPI driver or service issue, possibly combined with a Windows update incompatibility.

Please reply with these 4 things​

  1. Does the problem happen in the Windows login screen too?
  2. Do E and T work in Safe Mode?
  3. Was the reinstall a clean USB install or Reset this PC?
  4. Can you share your exact ASUS BIOS version and Windows version (winver)?
If you want, I can give you a targeted step-by-step repair plan specifically for the ASUS M513UA next.
 
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