Intermittent keys failing after an update are usually caused by either debris/physical issues with the keyboard or a driver/software problem.
Try these steps in order:
- Rule out hardware vs. software
- Connect an external USB keyboard and test the same keys.
- If the external keyboard works correctly, the built‑in laptop keyboard is likely faulty (hardware issue).
- If the same keys fail on the external keyboard, it is likely a Windows/driver issue.
- Connect an external USB keyboard and test the same keys.
- Clean the keyboard
- Debris under keys can cause intermittent behavior.
- Power down the laptop.
- Use compressed air to blow under the affected keys.
- Wipe the keys with a slightly damp microfiber cloth.
- Test in Safe Mode
- Boot Windows 11 into Safe Mode.
- Test the problematic keys there.
- If keys work in Safe Mode, a third‑party app or driver loaded in normal mode is likely interfering. Uninstall recently installed software (especially security, tuning, or keyboard‑related tools) and test again.
- Re‑check drivers and Windows Update
- Go to Start > Settings > Update & Security > Windows Update and select Check for updates to ensure all post‑update fixes and drivers are installed.
- Open Device Manager, locate the keyboard under Keyboards, open its Driver tab, and use Update Driver if a newer driver is available.
- If the problem persists
- If only the built‑in keyboard shows issues and an external keyboard works fine even after cleaning and Safe Mode testing, the laptop keyboard hardware is likely failing and may need repair or replacement by the manufacturer or a repair shop.
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