Hi, I'm Bianca, an Independent Advisor.
Sorry to hear you're experiencing this issue. I understand how you feel and I hope I can help you get this sorted out.
I'm not sure if you already have tried this but I do not want to miss important troubleshooting steps. I suggest that you use this troubleshooter as this could automatically detect and solve the problem with your keyboard. Please follow the steps on this link: https://support.microsoft.com/article/94b4ca7b-...
Please let me know if this does not work or if you've tried this already. I might have another possible solution to try after this one.