B,n,capslock , delete and 7 not working properly

[Bpavan]

B, n ,capslock,7 delete keys not working properly something it work and eventually stopped working don't know but its not hardware issue already updated all driver windows already re installed but no luck please suggest me 

[Echo_Lake]

@Bpavan

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• Did this happen after a recent window or software update?
• Have you made any hardware/software changes?
• When was the last time it worked fine?

While you respond to that, let's try these steps: 

Hard Reset: Follow steps from the link: https://hp.care/2GnkMa8. (do not skip any troubleshooting steps even if you feel steps are repeating)

BIOS default: 

1. Turn off the computer and wait five seconds.
2. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4. Press F10 to Save and Exit.
5. Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6. Follow the prompts to restart your computer.  

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[Bpavan]

Actually i already check this issue with various os like windows 8.1 , 7 and 10 also same issue were persist in each os last time i notice this issue an year ago but till today i didnt find any solution firstly i thought its keyboard hardware issue but now after spending year to find solutions  for this during this except above mentioned key no else key weren't misbehave so i think their something wrong in software 

For your information

Currently on windows 10 x64 - 1903

All driver and bios updated on latest available updates 

Hard reset done as per your instructions

No luck

[Riddle_Decipher]

@Bpavan I recommend you attempt the below steps to identify the cause of the failure and resolve it accordingly:

• Try changing the keyboard layout/language and check if it works: Click here for steps.
• Clean the keyboard with compressed air (blow compressed air in the gaps between keys). This removes some lint and dust. 
• Shut down the laptop, remove the battery and cable for a moment, press and hold the start button for 60 seconds
• Replace the battery, restart the notebook,
• if the issue persists, perform an interactive hardware test on the keyboard using the steps mentioned on this link: Click here (look under "Running Component Tests > Keyboard test").

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.