Caps Lock not working properly and z Key will not work in caps at all

[MikeG75]

In internal keyboard on my notebook is having an issue with the caps lock key and the z key.

• Caps lock does not work at all.
• Shift key does work on most letters
• shift key will not work on "z" key. If you press Shift+z, no letter appears. This key works in lowercase only.  

I have looked at the following already:

• filter keys (I believe I turned this off/disabled)
• updating the BIOS with august 2019 update
• setting shift key to turn off caps lock (which did work for a while - but not on z key) 

Any ideas on this?  I don't think it can be a hardware issue. as I previously had caps lock stuck on and then z worked in caps.

[Echo_Lake]

@MikeG75
Thank you for posting on the HP Support Community.

• Did this happen after a recent window or software update?
• Have you tried any troubleshooting steps?
• Have you made any hardware/software changes?

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

Hard Reset: Follow steps from the link: https://hp.care/2GnkMa8.

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.

Next, uninstall Keyboard from device manager.

1. Use shortcut keys Win + X on Windows 10.
2. Select Device Manager.
3. Expand the entry. Right-click the Keyboard and select Uninstall device.
4. You may need to check the option Delete the driver software for this device, and then click the Uninstall button.
5. Reboot the 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.