Question Very strange problem with my HP EliteBook laptop keyboard. All keys only write this word"e choice" over and over.

[Peacherina]

For over 2 months now I've had this problem with my HP EliteBook laptop keyboard. All keys will only write this word"e choice" over and over. Even if I use the same button it will write the above letters in that sequence. The internal On-Screen Keyboard works fine and the external keyboard that I plugged in via USB works fine. Does anyone know how to fix this problem?