11-22-2018 06:15 AM
Welcome to the HP Community. This is a great place to get support, find answers and tips to your technical queries. I have reviewed your post and I understand, there's an issue with the keyboard.
Don't worry, I'm here to help! To better assist you - May I have the exact model name of the computer? Refer to this link for steps to find the product details.
Let me know.
Eager to help!
I am an HP Employee
12-05-2018 10:55 AM
You have to do some steps to make the locked keyboard unlock. First, you have to press the alt+ctrl+del and then go to the auto lock via the screen. Go to the PC settings and then go to the ease of access and from there go to the keyboard option. There click on the screen lock option and turned it on.