HI Subbaraolv. I'm Greg, an installation specialist and 9 year Windows MVP, here to help you.

The problem could be the LED is faulty, or the driver for the keyboard or which provides the LED indicator lights needs reinstall.

Try the Keyboard Troubleshooter at Settings > Update & Security > Troubleshoot.

Check also at Settings > Time & Language > Region & Language to make sure the correct Language appears, then choose Advanced Keyboard Settings to see if a different input method is chosen in the dropdown menu.

This could have been caused by Windows Update. See if you can System Restore to a point before the problem began:

Check which Updates were installed at Settings > Update & Security > Windows Update > Installed Update History and try uninstalling any from around the time this started. If they return and cause the same problem then hide them with the Hide Updates tool:

If this was caused by Version 1809 update can roll back to in Settings>Update & Security>Recovery and then hide it until it matures using the Hide Updates Tool downloaded from here:

What also might work is to go into Device Manager, reached by right clicking the Start button, choose the Keyboard device, on Driver tab try Updating the driver automatically.

If this fails from the same location try rolling back or Uninstalling the Keyboard driver, which works in a surprising number of cases where keyboard is messed up by Updates. Restart PC to reinstall driver.

Go to the PC maker's Support Downloads web page to check for a driver for the LED indicator lights or backlighting on keyboard which can control these lights.

See if the keyboard will work in Safe Mode with Networking, or Safe Mode:

If not see if the On-screen Keyboard works at Settings > Ease of Access > Keyboard > Turn On the On Screen Keyboard.

If so then it could confirm the keyboard is failing, so we'd want to test it in repair mode to see if it works since it uses different drivers there:

If not you can contact a laptop manufacturer to see if you can still get it replaced under warranty, or check for replacement keyboards for that model from the PC maker or online from after-market OEM's that exactly match it.

This keyboard bulletin from Lenovo can also apply to other brands:

Try resetting the keyboard:

You can also remap keyboard keys using one of these methods:

Check in your BIOS or UEFI firmware Setup for keyboard settings there, too.

If none of these works then go over this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done:

Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files. Then continue with the other steps to go over your install most thoroughly.

But remember that Factory or Upgrade installs are inferior installs which most enthusiasts won't even run because they'd expect endless issues. Consider doing the Clean Install in this link which compiles the best possible install that will stay that way as long as you stick with the tools and methods given:

There is also an automated Refresh that reinstalls WIndows while shedding corrupting factory bloatware, saves your files, but doesn't clear the drive to get it cleanest:

I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Windows MVP 2010-20

Over 100,000 helped in forums in 10 years
I do not quit for those who are polite and cooperative.
I will walk you through any steps and will not let you fail.

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Question Info

Last updated November 10, 2020 Views 1,255 Applies to: