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[Debablog]

Dear sir I am working on my only one hp laptop. But not working some of the keys. Example shift, Chaplock, tap key and display left and right side whites line. How it fix. Please help me.

[praveenbv]

Hi@Debablog, Welcome to the HP Support Community!

I understand you have keyboard issues with your PC.

Don't worry I'll try to help you out.

Did you make any software or hardware changes on your PC?

Have you tried checking with an external keyboard does the issue persist?

As you mentioned keys on the keyboard stops functioning correctly.

Try few steps recommended below.

Turn off the computer and then restart it.
Press the Esc key repeatedly to see if a startup menu opens.
If a setup menu does not open, the integrated keyboard hardware is not working. The integrated keyboard in the notebook should be serviced or replaced. To continue using the notebook, connect a USB-wired keyboard to a USB port and restart the computer.
If a setup menu opens, use the arrow keys to navigate the menus. If these keys are working in the startup menu, but then fail when Windows loads, the problems might be related to the keyboard software.
Restart the computer.
In Device Manager, uninstall and reinstall the keyboard software:
In Windows, search for and open Device Manager.
Click View and select Show Hidden Devices.
Click the arrow next to Keyboards, right-click the keyboard device name, then select Uninstall to remove the device from Windows.
Continue removing device names in the Keyboards category until all device names have been uninstalled.
Restart the notebook. Right-click Start (), select Shut down or sign out, then select Restart.
Wait for the computer to restart and open Windows.

Refer to this article to further troubleshoot keyboard issues with your PC.

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Have a great day! 

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