the 1, 2, 3, f, j, 8, 9 and 0 keys on my keyboard are sometimes broken.

Question

the 1, 2, 3, f, j, 8, 9 and 0 keys on my keyboard are sometimes broken.

Steven W 20

they sometimes dont input or they input multiple times, and sometimes they work fine. i am not sure whether or not this is a software or hardware issue, because if i hold down 123f while it is multiple inputting or not working, and they click the q, w, or e keys, it will input "qwer"

i am not sure if function keys break when 123fj890 is broken, but i think they do.

Answer accepted by question author

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Answer 1

DaveM121 848.8K Independent Advisor

1

Open Command Prompt, then paste in this command and press Enter:

msdt.exe -id KeyboardDiagnostic

Run that Keyboard Troubleshooter to see if that can solve the problem.

2

If that does not resolve this for you

Open Device Manager

Expand the Keyboards section

Right click your keyboard and choose 'Uninstall'

Then restart your PC

3

If the problem is still not resolved:

Bring up the on-screen keyboard, are those keys working correctly on that keyboard?

Connect another external keyboard to your system, are those keys working correctly on that keyboard?

Steven W 20 Reputation points

2026-02-22T12:50:58.61+00:00

the on screen keyboardworks fine, and i dont have an external keyboard to install currently. i will do the restart now to check if it helps edit: i have three HID keyboard devices or some reason
DaveM121 848.8K Reputation points Independent Advisor

2026-02-22T12:53:47.3733333+00:00

Okay, if that process did not resolve the problem, you need to gain access to another external keyboard to test if those keys are working correctly on that keyboard, if they are, then there is a hardware fault on your own keyboard.
Steven W 20 Reputation points

2026-02-22T13:01:57.69+00:00

i have a question, when i press down 123f together and then tap q, w, e, or r, it will input "qwer" for some reason. is this normal?
DaveM121 848.8K Reputation points Independent Advisor

2026-02-22T13:03:41.0533333+00:00

No, that is not normal for those characters to be typed.
Steven W 20 Reputation points

2026-02-22T13:04:29.0066667+00:00

could it be a software issue then?
DaveM121 848.8K Reputation points Independent Advisor

2026-02-22T13:09:18.9+00:00

Really the only way to know if this is a software or hardware issue is to test those keys on another keyboard.
Steven W 20 Reputation points

2026-02-22T13:15:31.32+00:00

well i did boot into the advanced startup, and those keys didnt work there. i suspect this is hardware, but since i dont have another physical keyboard right now, i will click accept answer.

Answer 2

It sounds like you are experiencing intermittent issues with specific keys on your keyboard. This could be due to a hardware problem, such as debris under the keys, or a software issue, such as a driver conflict or interference from a third-party application.

Here are some troubleshooting steps you can try:

Clean the Keyboard: Use compressed air to blow out any debris under the affected keys. You can also wipe the keys with a slightly damp microfiber cloth.
Test with an External Keyboard: If you have access to an external keyboard, connect it and see if the same issues occur. If the external keyboard works fine, it may indicate a hardware problem with your original keyboard. If the external keyboard has the same issues, it may be a software or driver problem.
Boot into Safe Mode: If the keys work fine in Safe Mode, a third-party application may be interfering with keyboard input.
Update Drivers: Ensure that your keyboard drivers are up to date by checking for updates in Settings > Windows Update.

If these steps do not resolve the issue, you may want to consider seeking further assistance, as it could be a more complex hardware issue.

References:

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the 1, 2, 3, f, j, 8, 9 and 0 keys on my keyboard are sometimes broken.

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