Jan 21, 2020
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I have an Asus x541UVK running Windows 10 and a few days ago, the 6, 7, y, u, h, j, n, and m keys stopped functioning on my laptop. I tried disconnecting and reconnecting the keyboard ribbon cable but it didn't make a difference. My c key has now also stopped working.

An external keyboard works fine so it's possibly a hardware issue. I've had this issue a few months before with the same keys not working, however, I can't remember what I did to fix it. Any help is appreciated.
 
If the connections didn't so anything, and the external keyboard works fine, it likely is that the keyboard needs replacing. Especially if those are keys you use a lot and repeatedly.

You can try the following first, to see if it helps, but I still would be leaning towards you needing a new keyboard. Try this...

  1. Uninstall the keyboard driver.
  2. Reboot the computer (without reinstalling the driver).
  3. When it restarts, it should reinstall the driver on its own.

If it doesn't help, then replace the keyboard.