F and J key only work after repeated pressing.

Hello everyone,

I have a 4 year old HP Z-book laptop, and have been having some issues with the keys.

To be exact, the F, J, 1, 2, 3, 8, 9, 0 keys never work after starting the laptop. After repeated pressing of these keys (up to 2 minutes), they all at once suddenly work completely fine.

I have marked it as hardware, but am secretly hoping it is a software issue.

I have already tried reinstalling the keyboard driver.

Any suggestions are greatly appreciated!