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HP Recommended
Microsoft Windows 10 (64-bit)

Hello, I have an "old" HP 840 G2 laptop running Windows 10 "pro" 10.0.19.045 build 19045.

For the past few days, my keyboard has been unresponsive (I have to use a keyboard with a USB port, in that case, it is OK):

- If I press any key, it lights up but the key is not taken into account.

- the Caps Lock key does not lock (the specific LED remains off)

- Pressing the "fn" + "num lock" key combination has no effect (Note: There is no numeric keypad on the PC keyboard

 

Maneuvers performed:

- in Device Manager: I deleted the keyboard and restarted: no effect

- in Device Manager: I removed the keyboard with driver removal request and rebooted: no effect

- I did a SAFE MODE restart : no effect

- I went to the BIOS: again it was impossible to use the PC keyboard.

 

I'll add one point: with the "fn" + "F11" key, I can light, dim or turn off the backlight of the keyboard keys.

But no other combination works: for example "fn" + "F9" and "fn"+"F10" to decrease or increase the brightness of the screen do not work.

For me, it's the only action I can do with the keyboard.

 

I am looking for help or suggestions for additional diagnosis.

 

Thank you.

 

Serge/

 

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.