If some keys on your laptop keyboard are not working, there are several steps you can take to diagnose and potentially fix the issue:

1. Check for Physical Debris:
   • Dust, crumbs, or debris may be trapped under the non-working keys. Turn off your laptop, and gently try to remove any visible debris using compressed air or a soft brush. Be careful not to damage the keys or the keyboard.
2. Restart Your Laptop:
   • Sometimes, a simple restart can resolve keyboard issues caused by temporary software glitches.
3. Use an External Keyboard:
   • If you have an external USB keyboard, you can connect it to your laptop to verify if the issue is specific to the laptop’s built-in keyboard. If the external keyboard works fine, the problem may be with the laptop’s keyboard hardware.
4. Check for Driver Updates:
   • Outdated or corrupted keyboard drivers can cause key malfunctions. Go to your laptop manufacturer’s website or use Windows Update (on Windows) to check for and install any available driver updates.
5. Run a Keyboard Troubleshooter:
   • On Windows, you can run the built-in keyboard troubleshooter to identify and fix common issues. Go to “Settings” > “Update & Security” > “Troubleshoot” > “Additional troubleshooters” > “Keyboard” and run the troubleshooter.