A couple of buttons on my laptop suddenly stop working. On the Internet you should uninstall and reinstall the driver. I also tried that via the device manager but after the restart the driver is back on and it still doesn't work… Water or something.
https://utopia.de/ratgeber/tastatur-reinigen-das-musst-du-bei-laptop-und-pc-beachten/
Probably. Try that. Keyboards don't last forever.
Did you accidentally press any key combination with fn?
Which keys don't work?
Y, A, the 8 on the number pad and any other.
Check here:
http://www.tastaturtester.de/
If a defect turns out, a change is not rocket science. Search for the right keyboard on Ebay and on YouTube you will usually get installation instructions.
Instead of installing a new one, I would rather advise @thefate to choose a less time-consuming variant:
Buy a Bluetooth keyboard (also available as a set with a mouse)!
Also just a USB keyboard.
Yes, of course that would also work, no question at all, but if you use the laptop to play, as in my case, then a Bluetooth keyboard is more suitable,
because you can then connect the laptop to the TV via HDMI, for example, and then a wired keyboard would be a hindrance and would not contribute to the fun of the game.